Finding the Fourth Proportional to 1,139,513.31, 1,572,186.93 and 656,066.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,513.31 : 1,572,186.93 = 656,066.02 : x
2. Step 2: Convert to fraction form
   1,139,513.31/1,572,186.93 = 656,066.02/x
3. Step 3: Cross multiply
   1,139,513.31x = 1,572,186.93 × 656,066.02
4. Step 4: Simplify right side
   1,139,513.31x = 1,031,458,421,861.12
5. Step 5: Solve for x
   x = 1,031,458,421,861.12/1,139,513.31
6. Step 6: Final answer
   x = 905,174.53