Finding the Fourth Proportional to 1,054,500.11, 1,581,500.17 and 455,133.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054,500.11 : 1,581,500.17 = 455,133.93 : x
2. Step 2: Convert to fraction form
   1,054,500.11/1,581,500.17 = 455,133.93/x
3. Step 3: Cross multiply
   1,054,500.11x = 1,581,500.17 × 455,133.93
4. Step 4: Simplify right side
   1,054,500.11x = 719,794,387,667.77
5. Step 5: Solve for x
   x = 719,794,387,667.77/1,054,500.11
6. Step 6: Final answer
   x = 682,592.99