Finding the Fourth Proportional to 2,142.02, 2,951.37 and 1,442.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.02 : 2,951.37 = 1,442.18 : x
2. Step 2: Convert to fraction form
   2,142.02/2,951.37 = 1,442.18/x
3. Step 3: Cross multiply
   2,142.02x = 2,951.37 × 1,442.18
4. Step 4: Simplify right side
   2,142.02x = 4,256,406.79
5. Step 5: Solve for x
   x = 4,256,406.79/2,142.02
6. Step 6: Final answer
   x = 1,987.10