Finding the Fourth Proportional to 2,669,659.98, 4,004,456.49 and 647,920.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669,659.98 : 4,004,456.49 = 647,920.50 : x
2. Step 2: Convert to fraction form
   2,669,659.98/4,004,456.49 = 647,920.50/x
3. Step 3: Cross multiply
   2,669,659.98x = 4,004,456.49 × 647,920.50
4. Step 4: Simplify right side
   2,669,659.98x = 2,594,569,451,229.05
5. Step 5: Solve for x
   x = 2,594,569,451,229.05/2,669,659.98
6. Step 6: Final answer
   x = 971,872.62