Finding the Fourth Proportional to 3,996.62, 5,516.04 and 2,505.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,996.62 : 5,516.04 = 2,505.82 : x
2. Step 2: Convert to fraction form
   3,996.62/5,516.04 = 2,505.82/x
3. Step 3: Cross multiply
   3,996.62x = 5,516.04 × 2,505.82
4. Step 4: Simplify right side
   3,996.62x = 13,822,198.96
5. Step 5: Solve for x
   x = 13,822,198.96/3,996.62
6. Step 6: Final answer
   x = 3,458.47