Finding the Fourth Proportional to 3,714.24, 5,126.58 and 2,142.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.24 : 5,126.58 = 2,142.12 : x
2. Step 2: Convert to fraction form
   3,714.24/5,126.58 = 2,142.12/x
3. Step 3: Cross multiply
   3,714.24x = 5,126.58 × 2,142.12
4. Step 4: Simplify right side
   3,714.24x = 10,981,749.55
5. Step 5: Solve for x
   x = 10,981,749.55/3,714.24
6. Step 6: Final answer
   x = 2,956.66