Finding the Fourth Proportional to 2,499.42, 3,447.12 and 1,871.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.42 : 3,447.12 = 1,871.43 : x
2. Step 2: Convert to fraction form
   2,499.42/3,447.12 = 1,871.43/x
3. Step 3: Cross multiply
   2,499.42x = 3,447.12 × 1,871.43
4. Step 4: Simplify right side
   2,499.42x = 6,451,043.78
5. Step 5: Solve for x
   x = 6,451,043.78/2,499.42
6. Step 6: Final answer
   x = 2,581.02