Finding the Fourth Proportional to 3,144.72, 4,339.76 and 1,818.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.72 : 4,339.76 = 1,818.52 : x
2. Step 2: Convert to fraction form
   3,144.72/4,339.76 = 1,818.52/x
3. Step 3: Cross multiply
   3,144.72x = 4,339.76 × 1,818.52
4. Step 4: Simplify right side
   3,144.72x = 7,891,940.36
5. Step 5: Solve for x
   x = 7,891,940.36/3,144.72
6. Step 6: Final answer
   x = 2,509.58