Finding the Fourth Proportional to 3,714.33, 5,126.54 and 2,142.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.33 : 5,126.54 = 2,142.21 : x
2. Step 2: Convert to fraction form
   3,714.33/5,126.54 = 2,142.21/x
3. Step 3: Cross multiply
   3,714.33x = 5,126.54 × 2,142.21
4. Step 4: Simplify right side
   3,714.33x = 10,982,114.54
5. Step 5: Solve for x
   x = 10,982,114.54/3,714.33
6. Step 6: Final answer
   x = 2,956.69