Finding the Fourth Proportional to 1,597.34, 2,391.18 and 864.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.34 : 2,391.18 = 864.69 : x
2. Step 2: Convert to fraction form
   1,597.34/2,391.18 = 864.69/x
3. Step 3: Cross multiply
   1,597.34x = 2,391.18 × 864.69
4. Step 4: Simplify right side
   1,597.34x = 2,067,629.43
5. Step 5: Solve for x
   x = 2,067,629.43/1,597.34
6. Step 6: Final answer
   x = 1,294.42