Finding the Fourth Proportional to 897,128.52, 1,345,952.52 and 266,057.52

Step by Step Solution

1. Step 1: Write the proportion equation
   897,128.52 : 1,345,952.52 = 266,057.52 : x
2. Step 2: Convert to fraction form
   897,128.52/1,345,952.52 = 266,057.52/x
3. Step 3: Cross multiply
   897,128.52x = 1,345,952.52 × 266,057.52
4. Step 4: Simplify right side
   897,128.52x = 358,100,789,508.95
5. Step 5: Solve for x
   x = 358,100,789,508.95/897,128.52
6. Step 6: Final answer
   x = 399,163.31