Finding the Fourth Proportional to 3,144.68, 4,339.86 and 1,818.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.68 : 4,339.86 = 1,818.71 : x
2. Step 2: Convert to fraction form
   3,144.68/4,339.86 = 1,818.71/x
3. Step 3: Cross multiply
   3,144.68x = 4,339.86 × 1,818.71
4. Step 4: Simplify right side
   3,144.68x = 7,892,946.78
5. Step 5: Solve for x
   x = 7,892,946.78/3,144.68
6. Step 6: Final answer
   x = 2,509.94