Finding the Fourth Proportional to 3,980,499.72, 5,488,748.64 and 2,689,097.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980,499.72 : 5,488,748.64 = 2,689,097.82 : x
2. Step 2: Convert to fraction form
   3,980,499.72/5,488,748.64 = 2,689,097.82/x
3. Step 3: Cross multiply
   3,980,499.72x = 5,488,748.64 × 2,689,097.82
4. Step 4: Simplify right side
   3,980,499.72x = 14,759,782,002,351.96
5. Step 5: Solve for x
   x = 14,759,782,002,351.96/3,980,499.72
6. Step 6: Final answer
   x = 3,708,022.37