Finding the Fourth Proportional to 2,597.89, 3,896.37 and 748.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,597.89 : 3,896.37 = 748.55 : x
2. Step 2: Convert to fraction form
   2,597.89/3,896.37 = 748.55/x
3. Step 3: Cross multiply
   2,597.89x = 3,896.37 × 748.55
4. Step 4: Simplify right side
   2,597.89x = 2,916,623.39
5. Step 5: Solve for x
   x = 2,916,623.39/2,597.89
6. Step 6: Final answer
   x = 1,122.69