Finding the Fourth Proportional to 2,585.08, 3,879.87 and 1,336.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585.08 : 3,879.87 = 1,336.54 : x
2. Step 2: Convert to fraction form
   2,585.08/3,879.87 = 1,336.54/x
3. Step 3: Cross multiply
   2,585.08x = 3,879.87 × 1,336.54
4. Step 4: Simplify right side
   2,585.08x = 5,185,601.45
5. Step 5: Solve for x
   x = 5,185,601.45/2,585.08
6. Step 6: Final answer
   x = 2,005.97