| 900 | ÷ | ( | 574 25 | + | x | ) | = | 4 |
| Multiply both sides of the equation by: | ( | 574 25 | + | x | ) |
| 900 | = | 4 | ( | 574 25 | + | x | ) |
| 900 | = | 4 | × | 574 25 | + | 4 | x |
| 900 | = | 2296 25 | + | 4 | x |
| - | 4 | x | = | 2296 25 | − | 900 |
| - | 4 | x | = | - | 20204 25 |
20204 25 | = | 4 | x |
| 4 | x | = | 20204 25 |
| x | = | 20204 25 | ÷ | 4 |
| = | 20204 25 | × | 1 4 |
| = | 5051 25 | × | 1 |
| x | = | 5051 25 |
| x | = | 202.04 |