Finding the Fourth Proportional to 3,144.51, 4,338.72 and 1,818.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.51 : 4,338.72 = 1,818.18 : x
2. Step 2: Convert to fraction form
   3,144.51/4,338.72 = 1,818.18/x
3. Step 3: Cross multiply
   3,144.51x = 4,338.72 × 1,818.18
4. Step 4: Simplify right side
   3,144.51x = 7,888,573.93
5. Step 5: Solve for x
   x = 7,888,573.93/3,144.51
6. Step 6: Final answer
   x = 2,508.68