Finding the Fourth Proportional to 1,157,510.55, 1,597,375.76 and 641,275.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157,510.55 : 1,597,375.76 = 641,275.42 : x
2. Step 2: Convert to fraction form
   1,157,510.55/1,597,375.76 = 641,275.42/x
3. Step 3: Cross multiply
   1,157,510.55x = 1,597,375.76 × 641,275.42
4. Step 4: Simplify right side
   1,157,510.55x = 1,024,357,811,391.82
5. Step 5: Solve for x
   x = 1,024,357,811,391.82/1,157,510.55
6. Step 6: Final answer
   x = 884,966.29