Finding the Fourth Proportional to 2,386,667.59, 3,579,454.62 and 680,778.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386,667.59 : 3,579,454.62 = 680,778.43 : x
2. Step 2: Convert to fraction form
   2,386,667.59/3,579,454.62 = 680,778.43/x
3. Step 3: Cross multiply
   2,386,667.59x = 3,579,454.62 × 680,778.43
4. Step 4: Simplify right side
   2,386,667.59x = 2,436,815,496,459.85
5. Step 5: Solve for x
   x = 2,436,815,496,459.85/2,386,667.59
6. Step 6: Final answer
   x = 1,021,011.68