Finding the Fourth Proportional to 2,587.17, 3,879.61 and 737.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.17 : 3,879.61 = 737.86 : x
2. Step 2: Convert to fraction form
   2,587.17/3,879.61 = 737.86/x
3. Step 3: Cross multiply
   2,587.17x = 3,879.61 × 737.86
4. Step 4: Simplify right side
   2,587.17x = 2,862,609.03
5. Step 5: Solve for x
   x = 2,862,609.03/2,587.17
6. Step 6: Final answer
   x = 1,106.47