Finding the Fourth Proportional to 1,008,049.90, 1,391,093.31 and 555,357.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,049.90 : 1,391,093.31 = 555,357.10 : x
2. Step 2: Convert to fraction form
   1,008,049.90/1,391,093.31 = 555,357.10/x
3. Step 3: Cross multiply
   1,008,049.90x = 1,391,093.31 × 555,357.10
4. Step 4: Simplify right side
   1,008,049.90x = 772,553,546,471.00
5. Step 5: Solve for x
   x = 772,553,546,471.00/1,008,049.90
6. Step 6: Final answer
   x = 766,384.23