Finding the Fourth Proportional to 3,144.69, 4,339.34 and 1,818.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.69 : 4,339.34 = 1,818.82 : x
2. Step 2: Convert to fraction form
   3,144.69/4,339.34 = 1,818.82/x
3. Step 3: Cross multiply
   3,144.69x = 4,339.34 × 1,818.82
4. Step 4: Simplify right side
   3,144.69x = 7,892,478.38
5. Step 5: Solve for x
   x = 7,892,478.38/3,144.69
6. Step 6: Final answer
   x = 2,509.78