Finding the Fourth Proportional to 954,437.78, 1,317,131.69 and 518,855.04

Step by Step Solution

1. Step 1: Write the proportion equation
   954,437.78 : 1,317,131.69 = 518,855.04 : x
2. Step 2: Convert to fraction form
   954,437.78/1,317,131.69 = 518,855.04/x
3. Step 3: Cross multiply
   954,437.78x = 1,317,131.69 × 518,855.04
4. Step 4: Simplify right side
   954,437.78x = 683,400,413,105.94
5. Step 5: Solve for x
   x = 683,400,413,105.94/954,437.78
6. Step 6: Final answer
   x = 716,024.06