McGilla Golf has decided to sell a new line of golf clubs. The length of this projectis seven years. The company has spent $123493 on research and development for the new clubs. The plant and equipment required will cost $2884447 and will be depreciated on a straight-line basis. The new clubs will also require an increase in net working capital of $125874 that will be returned at the end of the project. The annual OCF of the project will be $896408. The tax rate is 29 percent, and the cost of capital is 10 percent. What is the payback periodfor this project?