Finding the Fourth Proportional to 3,144.96, 4,339.83 and 1,818.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.96 : 4,339.83 = 1,818.57 : x
2. Step 2: Convert to fraction form
   3,144.96/4,339.83 = 1,818.57/x
3. Step 3: Cross multiply
   3,144.96x = 4,339.83 × 1,818.57
4. Step 4: Simplify right side
   3,144.96x = 7,892,284.64
5. Step 5: Solve for x
   x = 7,892,284.64/3,144.96
6. Step 6: Final answer
   x = 2,509.50