A company plans to make four annual deposits of $4,250 each to a special building fund. The fund's assets will be invested in mortgage instruments expected to pay interest at 12% on the fund's balance. Determine how much will be accumulated in the fund after four years under each of the following situations:

1. The $4250 annual deposit are made at the end of each of the four years and interest is compounded annually.

2. The $4250 annual deposit are made at the beginning of each of the four years and interest is compounded annually.

3. The $4250 annual deposit are made at the beginning of each of the four years and interest is compounded quarterly.

4. The $4250 annual deposit are made at the beginning of each of the four years interest is compounded annually, and interest earned is withdrawn at the end of each year.