Finding the Fourth Proportional to 3,714.86, 5,126.64 and 2,142.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.86 : 5,126.64 = 2,142.56 : x
2. Step 2: Convert to fraction form
   3,714.86/5,126.64 = 2,142.56/x
3. Step 3: Cross multiply
   3,714.86x = 5,126.64 × 2,142.56
4. Step 4: Simplify right side
   3,714.86x = 10,984,133.80
5. Step 5: Solve for x
   x = 10,984,133.80/3,714.86
6. Step 6: Final answer
   x = 2,956.81