Finding the Fourth Proportional to 2,641.08, 3,960.06 and 1,081.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.08 : 3,960.06 = 1,081.86 : x
2. Step 2: Convert to fraction form
   2,641.08/3,960.06 = 1,081.86/x
3. Step 3: Cross multiply
   2,641.08x = 3,960.06 × 1,081.86
4. Step 4: Simplify right side
   2,641.08x = 4,284,230.51
5. Step 5: Solve for x
   x = 4,284,230.51/2,641.08
6. Step 6: Final answer
   x = 1,622.15