Finding the Fourth Proportional to 3,144.82, 4,339.81 and 1,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.82 : 4,339.81 = 1,818.50 : x
2. Step 2: Convert to fraction form
   3,144.82/4,339.81 = 1,818.50/x
3. Step 3: Cross multiply
   3,144.82x = 4,339.81 × 1,818.50
4. Step 4: Simplify right side
   3,144.82x = 7,891,925.06
5. Step 5: Solve for x
   x = 7,891,925.06/3,144.82
6. Step 6: Final answer
   x = 2,509.50