Finding the Fourth Proportional to 2,597.27, 3,895.49 and 865.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,597.27 : 3,895.49 = 865.89 : x
2. Step 2: Convert to fraction form
   2,597.27/3,895.49 = 865.89/x
3. Step 3: Cross multiply
   2,597.27x = 3,895.49 × 865.89
4. Step 4: Simplify right side
   2,597.27x = 3,373,068.00
5. Step 5: Solve for x
   x = 3,373,068.00/2,597.27
6. Step 6: Final answer
   x = 1,298.70