Finding the Fourth Proportional to 2,580,736.03, 3,870,853.90 and 783,635.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580,736.03 : 3,870,853.90 = 783,635.30 : x
2. Step 2: Convert to fraction form
   2,580,736.03/3,870,853.90 = 783,635.30/x
3. Step 3: Cross multiply
   2,580,736.03x = 3,870,853.90 × 783,635.30
4. Step 4: Simplify right side
   2,580,736.03x = 3,033,337,757,182.67
5. Step 5: Solve for x
   x = 3,033,337,757,182.67/2,580,736.03
6. Step 6: Final answer
   x = 1,175,376.99