Finding the Fourth Proportional to 3,144.27, 4,339.17 and 1,818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.27 : 4,339.17 = 1,818.42 : x
2. Step 2: Convert to fraction form
   3,144.27/4,339.17 = 1,818.42/x
3. Step 3: Cross multiply
   3,144.27x = 4,339.17 × 1,818.42
4. Step 4: Simplify right side
   3,144.27x = 7,890,433.51
5. Step 5: Solve for x
   x = 7,890,433.51/3,144.27
6. Step 6: Final answer
   x = 2,509.46