What is the mirr of the better project

Question

Problem:

You company is considering two mutually exclusive projects, X and Y, whose costs and cash flows are shown below:

Year    X    Y

0    (1,000)    (1,000)
1    100    1,000
2    300    100
3    400    50
4    700    50

The projects are equally risky, and their cost of capital is 12%. You must make a recommendation, and you must base it on the modified IRR (MIRR). What is the MIRR of the better project.