Finding the Fourth Proportional to 899,010.72, 1,240,930.46 and 715,585.75

Step by Step Solution

1. Step 1: Write the proportion equation
   899,010.72 : 1,240,930.46 = 715,585.75 : x
2. Step 2: Convert to fraction form
   899,010.72/1,240,930.46 = 715,585.75/x
3. Step 3: Cross multiply
   899,010.72x = 1,240,930.46 × 715,585.75
4. Step 4: Simplify right side
   899,010.72x = 887,992,150,339.02
5. Step 5: Solve for x
   x = 887,992,150,339.02/899,010.72
6. Step 6: Final answer
   x = 987,743.67