Finding the Fourth Proportional to 3,980,507.72, 5,488,759.68 and 2,689,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980,507.72 : 5,488,759.68 = 2,689,105.82 : x
2. Step 2: Convert to fraction form
   3,980,507.72/5,488,759.68 = 2,689,105.82/x
3. Step 3: Cross multiply
   3,980,507.72x = 5,488,759.68 × 2,689,105.82
4. Step 4: Simplify right side
   3,980,507.72x = 14,759,855,600,069.34
5. Step 5: Solve for x
   x = 14,759,855,600,069.34/3,980,507.72
6. Step 6: Final answer
   x = 3,708,033.41