Finding the Fourth Proportional to 3,992.68, 5,508.84 and 2,500.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.68 : 5,508.84 = 2,500.12 : x
2. Step 2: Convert to fraction form
   3,992.68/5,508.84 = 2,500.12/x
3. Step 3: Cross multiply
   3,992.68x = 5,508.84 × 2,500.12
4. Step 4: Simplify right side
   3,992.68x = 13,772,761.06
5. Step 5: Solve for x
   x = 13,772,761.06/3,992.68
6. Step 6: Final answer
   x = 3,449.50