Finding the Fourth Proportional to 2,585.89, 3,879.66 and 1,105.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.89 : 3,879.66 = 1,105.04 : x
2. Step 2: Convert to fraction form
   2,585.89/3,879.66 = 1,105.04/x
3. Step 3: Cross multiply
   2,585.89x = 3,879.66 × 1,105.04
4. Step 4: Simplify right side
   2,585.89x = 4,287,193.33
5. Step 5: Solve for x
   x = 4,287,193.33/2,585.89
6. Step 6: Final answer
   x = 1,657.92