Please solve either using a financial calculator but show steps. Do not solve using EXCEL. The answer is there but I want to learn the steps. nor hand equations they confuse me a bit

Hindelang Inc. is considering a project that has the following cash flow and WACC data. What is the project's MIRR? Note that a project's MIRR can be less than the WACC (and even negative), in which case it will be rejected. 16.56%

WACC: 12.25% Year 0 1 2 3 4 Cash flows -$850 $300 $320 $340 $360