Finding the Fourth Proportional to 2,107,980.88, 3,161,978.82 and 510,545.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107,980.88 : 3,161,978.82 = 510,545.04 : x
2. Step 2: Convert to fraction form
   2,107,980.88/3,161,978.82 = 510,545.04/x
3. Step 3: Cross multiply
   2,107,980.88x = 3,161,978.82 × 510,545.04
4. Step 4: Simplify right side
   2,107,980.88x = 1,614,332,603,136.05
5. Step 5: Solve for x
   x = 1,614,332,603,136.05/2,107,980.88
6. Step 6: Final answer
   x = 765,819.38