When this happens you most always lose the converter immediately or it will give up the ghost very soon after (never been involved in one of these threads where it didn't). The television and microwave are other likely candidates for replacement, but depending on brand sometimes you're lucky enough for it to be a blown fuse.
Electric Fireplaces, if equipped, also can be fried or fixed, again depending on what it is. Same thing for fridge control boards.
It happens, and once you get over the initial sickness of it, you'll be stronger for having went thru it. I know that sounds hollow at this point.
You may want to consider some perusing at this link, and also possibly purchasing an EMS that would help prevent things like this from happening (but that is looking forward, not in hindsight). The link below will tell you how to test ALL outlets before plugging in, as well as make plug-n-play testers if you don't have an EMS.
They have a statement there that we cannot spread enough times to our members here on the forums, as excerpted below:
It is imperative that the Electric Service used for RV’s are wired correctly. DO NOT TRUST anyone, yourself, friends, relatives or ANY Professional Electrician. ALWAYS check out all RV Electric Service BEFORE plugging in the first time. The majority of the mistakes and the most damage to the RV’s are made with the incorrect installation of the 120-volt 30 amp Service. For some reason people including Electricians just DON’T GET IT when it comes to the 30-amp 120-volt Service. All you need to do is look at the online Forums where RV’s were damaged by incorrect installations.