The theory that the 3rd wave is always the longest and correction wave 2 never retraces more than 100% of wave 1, while wave 4 does not overlap with the price territory of wave 1 this should be the projection. I did measure the 1st yellow wave and because the 3rd wave has to be longer, that's how I've got it's height. The price targets are not accurate, but it should give you a rough idea.
I would like to hear your opinion about this. Feel free to correct me if I'm wrong!