Finding the Fourth Proportional to 2,498.96, 3,727.32 and 2,129.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.96 : 3,727.32 = 2,129.60 : x
2. Step 2: Convert to fraction form
   2,498.96/3,727.32 = 2,129.60/x
3. Step 3: Cross multiply
   2,498.96x = 3,727.32 × 2,129.60
4. Step 4: Simplify right side
   2,498.96x = 7,937,700.67
5. Step 5: Solve for x
   x = 7,937,700.67/2,498.96
6. Step 6: Final answer
   x = 3,176.40