3 prong to 4 prong question

So I have a crimper at work that was sent to us by our corporate office, problem is our outlet is a 3 prong and the crimper is 4, I don’t know much about voltage and stuff like that but I added pictures, a company came out and is quoting us nearly $3000 my question is, is this an easy fix and I’m being hustled or does it sound about right?