| 100 | ( | 1 | + | i | ) | × | 5 | = | 1611 10 |
| Left side of the equation = | 500 | ( | 1 | + | i | ) |
| 500 | ( | 1 | + | i | ) | = | 1611 10 |
| Left side of the equation = | 500 | × | 1 | + | 500 | i |
| = | 500 | + | 500 | i |
| 500 | + | 500 | i | = | 1611 10 |
| 500 | i | = | 1611 10 | − | 500 |
| 500 | i | = | - | 3389 10 |
| i | = | - | 3389 10 | ÷ | 500 |
| = | - | 3389 10 | × | 1 500 |
| i | = | - | 3389 5000 |
| i | = | - 0.6778 |