| ( | 1814 | − | x | ) | ÷ | x | = | - | 309 500 |
| Multiply both sides of the equation by: | x |
| ( | 1814 | − | x | ) | = | - | 309 500 | x |
| 1814 | − | x | = | - | 309 500 | x |
| - | x | + | 309 500 | x | = | - | 1814 |
| - | 191 500 | x | = | - | 1814 |
| 1814 | = | 191 500 | x |
191 500 | x | = | 1814 |
| x | = | 1814 | ÷ | 191 500 |
| = | 1814 | × | 500 191 |
| x | = | 907000 191 |
| x | = | 4748.691099 |