Final answer:
Project A's payback period is calculated by determining when the cumulative cash flows exceed the initial investment of $1,050. By the end of Year 2, the cumulative cash flow does so, and the exact payback period is 1.8333 years when rounded to four decimal places.
Step-by-step explanation:
To determine Project A's payback period, we need to find out how long it will take for the project's cumulative cash flows to cover the initial investment of $1,050. The cash flows for Project A over its 4-year life are as follows:
- Year 1: $700
- Year 2: $420
- Year 3: $240
- Year 4: $290
We calculate the cumulative cash flow at the end of each year:
- End of Year 1: $700
- End of Year 2: $700 + $420 = $1,120
By the end of Year 2, the cumulative cash flow of $1,120 exceeds the initial investment of $1,050. Therefore, the payback period for Project A is sometime during Year 2. To find the exact point, we calculate the remaining amount to be recovered at the start of Year 2, which is $1,050 - $700 = $350, and then divide this by the Year 2 cash flow:
$350 / $420 = 0.8333
Thus, Project A's payback period is 1 year plus the portion of the second year, which equals to 1.8333 years. When rounded to four decimal places, it is 1.8333.