Answer: $4,231.47
Explanation:
The terminal value is the value of the various payments at the end of year 4.
This means that for every deposit, we need to find the future value up to year 4.
The first payment would therefore accrue for 3 years as it would be deposited at the end of the first year, the second would accrue for 2 years and the third would accrue for a year.
= (1,000 * (1 + 7%)³) + (700 * 1.07²) + (1,500 * 1.07) + 600
= 1,225.043 + 801.43 + 1,605 + 600
= $4,231.47