Finding the Fourth Proportional to 2,391.33, 3,586.89 and 747.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.33 : 3,586.89 = 747.69 : x
2. Step 2: Convert to fraction form
   2,391.33/3,586.89 = 747.69/x
3. Step 3: Cross multiply
   2,391.33x = 3,586.89 × 747.69
4. Step 4: Simplify right side
   2,391.33x = 2,681,881.78
5. Step 5: Solve for x
   x = 2,681,881.78/2,391.33
6. Step 6: Final answer
   x = 1,121.50