Finding the Fourth Proportional to 626,680.80, 938,880.72 and 559,496.16

Step by Step Solution

1. Step 1: Write the proportion equation
   626,680.80 : 938,880.72 = 559,496.16 : x
2. Step 2: Convert to fraction form
   626,680.80/938,880.72 = 559,496.16/x
3. Step 3: Cross multiply
   626,680.80x = 938,880.72 × 559,496.16
4. Step 4: Simplify right side
   626,680.80x = 525,300,157,538.04
5. Step 5: Solve for x
   x = 525,300,157,538.04/626,680.80
6. Step 6: Final answer
   x = 838,226.03