Finding the Fourth Proportional to 1,117,566.56, 1,542,275.25 and 688,094.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,566.56 : 1,542,275.25 = 688,094.48 : x
2. Step 2: Convert to fraction form
   1,117,566.56/1,542,275.25 = 688,094.48/x
3. Step 3: Cross multiply
   1,117,566.56x = 1,542,275.25 × 688,094.48
4. Step 4: Simplify right side
   1,117,566.56x = 1,061,231,086,165.62
5. Step 5: Solve for x
   x = 1,061,231,086,165.62/1,117,566.56
6. Step 6: Final answer
   x = 949,590.95