| ( | k | − | 1 2 | ) | × | 5 | × | 589 | × | 1 1000 | = | 4 |
| Left side of the equation = | ( | k | − | 1 2 | ) | × | 589 200 |
| ( | k | − | 1 2 | ) | × | 589 200 | = | 4 |
| Left side of the equation = | k | × | 589 200 | − | 1 2 | × | 589 200 |
| = | k | × | 589 200 | − | 589 400 |
589 200 | k | − | 589 400 | = | 4 |
589 200 | k | = | 4 | + | 589 400 |
589 200 | k | = | 2189 400 |
| k | = | 2189 400 | ÷ | 589 200 |
| = | 2189 400 | × | 200 589 |
| = | 2189 2 | × | 1 589 |
| k | = | 2189 1178 |
| k | = | 1.858234 |