Solution - Compound interest (basic)

974027.73

974027.73

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 20, 978$ , $r = 13 %$ , $n = 4$ , $t = 30$ .

Compute period rate and exponent: $\frac{r}{n} = 0.0325$ , $n t = 120$ , so the growth factor is $46.4309146955$ .

Multiply principal by growth factor: $20, 978$ × $46.4309146955$ = $974027.73$ .

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Compound interest appears in savings, loans, and investments. Understanding it builds strong financial literacy.