Finding the Fourth Proportional to 1,008,152.63, 1,391,250.03 and 555,443.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,152.63 : 1,391,250.03 = 555,443.63 : x
2. Step 2: Convert to fraction form
   1,008,152.63/1,391,250.03 = 555,443.63/x
3. Step 3: Cross multiply
   1,008,152.63x = 1,391,250.03 × 555,443.63
4. Step 4: Simplify right side
   1,008,152.63x = 772,760,963,078.83
5. Step 5: Solve for x
   x = 772,760,963,078.83/1,008,152.63
6. Step 6: Final answer
   x = 766,511.88