good reraise size w/ two jacks to figure out where your pair actually stands...

with the flop

** Dealing Flop ** [ 4s, Jh, 7c ]

this is not to threatening, considering your opponents called a reraise of a 4xbb ($1) to 2.75

theres no flush possibility...
there is a straight draw possibility but i would not be worried about that at this point...

given this situation, i would have checked it one time to let my opponents catch up hoping they would spike a ace king or a queen or maybe their bottom set to extract more cash. hope i was any help.