Jealousy is something you need to work through-it's based in your own insecurities.
THAT doesn't mean that by working through it you will find that you are compatible with poly. You may or may not be.
But, jealousy isn't the key for deciding. You need to resolve those insecurity issues regardless-so that you can have the best relationship with yourself and anyone else, whether it's a poly or a mono relationship.
place to start reading on how to handle and resolve the insecurities that drive jealousy.