Finding the Fourth Proportional to 1,136,598.72, 1,568,517.12 and 627,290.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136,598.72 : 1,568,517.12 = 627,290.16 : x
2. Step 2: Convert to fraction form
   1,136,598.72/1,568,517.12 = 627,290.16/x
3. Step 3: Cross multiply
   1,136,598.72x = 1,568,517.12 × 627,290.16
4. Step 4: Simplify right side
   1,136,598.72x = 983,915,355,167.54
5. Step 5: Solve for x
   x = 983,915,355,167.54/1,136,598.72
6. Step 6: Final answer
   x = 865,666.43