Finding the Fourth Proportional to 2,500.92, 3,449.32 and 2,129.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.92 : 3,449.32 = 2,129.12 : x
2. Step 2: Convert to fraction form
   2,500.92/3,449.32 = 2,129.12/x
3. Step 3: Cross multiply
   2,500.92x = 3,449.32 × 2,129.12
4. Step 4: Simplify right side
   2,500.92x = 7,344,016.20
5. Step 5: Solve for x
   x = 7,344,016.20/2,500.92
6. Step 6: Final answer
   x = 2,936.53