Finding the Fourth Proportional to 2,317.97, 3,198.78 and 1,323.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.97 : 3,198.78 = 1,323.18 : x
2. Step 2: Convert to fraction form
   2,317.97/3,198.78 = 1,323.18/x
3. Step 3: Cross multiply
   2,317.97x = 3,198.78 × 1,323.18
4. Step 4: Simplify right side
   2,317.97x = 4,232,561.72
5. Step 5: Solve for x
   x = 4,232,561.72/2,317.97
6. Step 6: Final answer
   x = 1,825.98