Finding the Fourth Proportional to 3,714.86, 5,126.22 and 2,142.65

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.86 : 5,126.22 = 2,142.65 : x
2. Step 2: Convert to fraction form
   3,714.86/5,126.22 = 2,142.65/x
3. Step 3: Cross multiply
   3,714.86x = 5,126.22 × 2,142.65
4. Step 4: Simplify right side
   3,714.86x = 10,983,713.69
5. Step 5: Solve for x
   x = 10,983,713.69/3,714.86
6. Step 6: Final answer
   x = 2,956.69