Finding the Fourth Proportional to 2,386,665.59, 3,579,451.62 and 680,776.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386,665.59 : 3,579,451.62 = 680,776.43 : x
2. Step 2: Convert to fraction form
   2,386,665.59/3,579,451.62 = 680,776.43/x
3. Step 3: Cross multiply
   2,386,665.59x = 3,579,451.62 × 680,776.43
4. Step 4: Simplify right side
   2,386,665.59x = 2,436,806,277,324.06
5. Step 5: Solve for x
   x = 2,436,806,277,324.06/2,386,665.59
6. Step 6: Final answer
   x = 1,021,008.68