can someone help with this accounting practice problem

A project requires an initial investment of $336,990 and its expected life is 7 years. Net operating income from the project is expected to be $28,800 each year, including depreciation of $44,170. The salvage value of the assets is expected to be $27.800 at the end of the life of the project. Ignoring Income taxes, the payback period is: (Round your answer to 2 decimal places.) Payback porod years