Finding the Fourth Proportional to 1,007,798.52, 1,390,761.72 and 555,089.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,798.52 : 1,390,761.72 = 555,089.52 : x
2. Step 2: Convert to fraction form
   1,007,798.52/1,390,761.72 = 555,089.52/x
3. Step 3: Cross multiply
   1,007,798.52x = 1,390,761.72 × 555,089.52
4. Step 4: Simplify right side
   1,007,798.52x = 771,997,255,589.18
5. Step 5: Solve for x
   x = 771,997,255,589.18/1,007,798.52
6. Step 6: Final answer
   x = 766,023.41