Finding the Fourth Proportional to 2,653,978.04, 3,980,969.82 and 659,434.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,653,978.04 : 3,980,969.82 = 659,434.04 : x
2. Step 2: Convert to fraction form
   2,653,978.04/3,980,969.82 = 659,434.04/x
3. Step 3: Cross multiply
   2,653,978.04x = 3,980,969.82 × 659,434.04
4. Step 4: Simplify right side
   2,653,978.04x = 2,625,187,011,520.67
5. Step 5: Solve for x
   x = 2,625,187,011,520.67/2,653,978.04
6. Step 6: Final answer
   x = 989,151.75