PLEASE SHOW YOUR WORK NOT AN EXCEL IRR FORMULA

How do I solve for the PMT when using a TI84?

N = 3 PV = -28900 PMT = ? FV = ?

A firm evaluates all of its projects by applying the IRR rule. A project under consideration has the following cash flows: Year Cash Flow 0 $ 28,900 1 12,900 2 15,900 3 11,900 If the required return is 14 percent, what is the IRR for this project? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)