Finding the Fourth Proportional to 2,702.39, 4,055.18 and 1,142.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,702.39 : 4,055.18 = 1,142.30 : x
2. Step 2: Convert to fraction form
   2,702.39/4,055.18 = 1,142.30/x
3. Step 3: Cross multiply
   2,702.39x = 4,055.18 × 1,142.30
4. Step 4: Simplify right side
   2,702.39x = 4,632,214.69
5. Step 5: Solve for x
   x = 4,632,214.69/2,702.39
6. Step 6: Final answer
   x = 1,714.12