Finding the Fourth Proportional to 2,323.71, 3,207.19 and 1,818.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.71 : 3,207.19 = 1,818.57 : x
2. Step 2: Convert to fraction form
   2,323.71/3,207.19 = 1,818.57/x
3. Step 3: Cross multiply
   2,323.71x = 3,207.19 × 1,818.57
4. Step 4: Simplify right side
   2,323.71x = 5,832,499.52
5. Step 5: Solve for x
   x = 5,832,499.52/2,323.71
6. Step 6: Final answer
   x = 2,509.99