Finding the Fourth Proportional to 2,391.86, 3,588.23 and 748.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.86 : 3,588.23 = 748.04 : x
2. Step 2: Convert to fraction form
   2,391.86/3,588.23 = 748.04/x
3. Step 3: Cross multiply
   2,391.86x = 3,588.23 × 748.04
4. Step 4: Simplify right side
   2,391.86x = 2,684,123.50
5. Step 5: Solve for x
   x = 2,684,123.50/2,391.86
6. Step 6: Final answer
   x = 1,122.19