Finding the Fourth Proportional to 915,317.32, 1,262,876.82 and 528,102.04

Step by Step Solution

1. Step 1: Write the proportion equation
   915,317.32 : 1,262,876.82 = 528,102.04 : x
2. Step 2: Convert to fraction form
   915,317.32/1,262,876.82 = 528,102.04/x
3. Step 3: Cross multiply
   915,317.32x = 1,262,876.82 × 528,102.04
4. Step 4: Simplify right side
   915,317.32x = 666,927,824,910.71
5. Step 5: Solve for x
   x = 666,927,824,910.71/915,317.32
6. Step 6: Final answer
   x = 728,630.18