Finding the Fourth Proportional to 2,702.18, 4,049.75 and 1,238.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,702.18 : 4,049.75 = 1,238.10 : x
2. Step 2: Convert to fraction form
   2,702.18/4,049.75 = 1,238.10/x
3. Step 3: Cross multiply
   2,702.18x = 4,049.75 × 1,238.10
4. Step 4: Simplify right side
   2,702.18x = 5,013,989.28
5. Step 5: Solve for x
   x = 5,013,989.28/2,702.18
6. Step 6: Final answer
   x = 1,855.54