Finding the Fourth Proportional to 3,714.67, 5,124.85 and 2,142.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.67 : 5,124.85 = 2,142.19 : x
2. Step 2: Convert to fraction form
   3,714.67/5,124.85 = 2,142.19/x
3. Step 3: Cross multiply
   3,714.67x = 5,124.85 × 2,142.19
4. Step 4: Simplify right side
   3,714.67x = 10,978,402.42
5. Step 5: Solve for x
   x = 10,978,402.42/3,714.67
6. Step 6: Final answer
   x = 2,955.42