Finding the Fourth Proportional to 1,139,352.55, 1,572,499.86 and 656,197.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,352.55 : 1,572,499.86 = 656,197.42 : x
2. Step 2: Convert to fraction form
   1,139,352.55/1,572,499.86 = 656,197.42/x
3. Step 3: Cross multiply
   1,139,352.55x = 1,572,499.86 × 656,197.42
4. Step 4: Simplify right side
   1,139,352.55x = 1,031,870,351,082.36
5. Step 5: Solve for x
   x = 1,031,870,351,082.36/1,139,352.55
6. Step 6: Final answer
   x = 905,663.79