Finding the Fourth Proportional to 1,867.85, 2,577.79 and 1,081.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,867.85 : 2,577.79 = 1,081.95 : x
2. Step 2: Convert to fraction form
   1,867.85/2,577.79 = 1,081.95/x
3. Step 3: Cross multiply
   1,867.85x = 2,577.79 × 1,081.95
4. Step 4: Simplify right side
   1,867.85x = 2,789,039.89
5. Step 5: Solve for x
   x = 2,789,039.89/1,867.85
6. Step 6: Final answer
   x = 1,493.18