| ( | ( | ( | 19 20 | + | 1 | ) | × | 19 20 | + | 1 | ) | × | 19 20 | + | x | ) | × | 26 25 | = | 1 | + | 1 | + | 1 | + | x |
| Left side of the equation = | ( | ( | 19 20 | + | 1 | ) | × | 19 20 | + | 1 | ) | × | 19 20 | × | 26 25 | + | x | × | 26 25 |
| = | ( | ( | 19 20 | + | 1 | ) | × | 19 20 | + | 1 | ) | × | 247 250 | + | x | × | 26 25 |
| = | ( | 19 20 | + | 1 | ) | × | 19 20 | × | 247 250 | + | 1 | × | 247 250 | + | 26 25 | x |
| = | ( | 19 20 | + | 1 | ) | × | 4693 5000 | + | 247 250 | + | 26 25 | x |
| = | 19 20 | × | 4693 5000 | + | 1 | × | 4693 5000 | + | 247 250 | + | 26 25 | x |
| = | 89167 100000 | + | 4693 5000 | + | 247 250 | + | 26 25 | x |
| = | 281827 100000 | + | 26 25 | x |
281827 100000 | + | 26 25 | x | = | 1 | + | 1 | + | 1 | + | x |
| Right side of the equation = | 3 | + | x |
281827 100000 | + | 26 25 | x | = | 3 | + | x |
26 25 | x | − | x | = | 3 | − | 281827 100000 |
1 25 | x | = | 3 | − | 281827 100000 |
1 25 | x | = | 18173 100000 |
| x | = | 18173 100000 | ÷ | 1 25 |
| = | 18173 100000 | × | 25 |
| = | 18173 4000 | × | 1 |
| x | = | 18173 4000 |
| x | = | 4.54325 |