Finding the Fourth Proportional to 2,124,204.90, 3,185,864.55 and 777,002.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124,204.90 : 3,185,864.55 = 777,002.10 : x
2. Step 2: Convert to fraction form
   2,124,204.90/3,185,864.55 = 777,002.10/x
3. Step 3: Cross multiply
   2,124,204.90x = 3,185,864.55 × 777,002.10
4. Step 4: Simplify right side
   2,124,204.90x = 2,475,423,445,665.55
5. Step 5: Solve for x
   x = 2,475,423,445,665.55/2,124,204.90
6. Step 6: Final answer
   x = 1,165,341.18