Finding the Fourth Proportional to 881,758.52, 1,216,939.33 and 519,216.12

Step by Step Solution

1. Step 1: Write the proportion equation
   881,758.52 : 1,216,939.33 = 519,216.12 : x
2. Step 2: Convert to fraction form
   881,758.52/1,216,939.33 = 519,216.12/x
3. Step 3: Cross multiply
   881,758.52x = 1,216,939.33 × 519,216.12
4. Step 4: Simplify right side
   881,758.52x = 631,854,514,926.43
5. Step 5: Solve for x
   x = 631,854,514,926.43/881,758.52
6. Step 6: Final answer
   x = 716,584.53