The management of Helberg Corporation is considering a project that would require an investment of $228,000 and would last for 6 years. The annual net operating income from the project would be $108,000, which includes depreciation of $29,000. The scrap value of the project's assets at the end of the project would be $15,000. The cash inflows occur evenly throughout the year. The payback period of the project is closest to: