Answer:
The minimum amount of time required is:
26.82 years.
Explanation:
Present value = $2,600
Future value = $7,800 ($2,600 * 3)
Annual interest rate = 4.1%
Monthly interest rate = 4.1%/12 = 0.342%
$2,600 will need to be invested for 321.781 (26.82 years) periods to reach the future value of $7,800.00.
FV (Future Value) $7,800.00
PV (Present Value) $2,600.00
N (Number of Periods) 321.781
I/Y (Interest Rate) 0.342%
PMT (Periodic Payment) $0.00
Starting Investment $2,600.00
Total Principal $2,600.00
Total Interest $5,200.00