Finding the Fourth Proportional to 1,867.60, 2,577.32 and 1,081.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,867.60 : 2,577.32 = 1,081.68 : x
2. Step 2: Convert to fraction form
   1,867.60/2,577.32 = 1,081.68/x
3. Step 3: Cross multiply
   1,867.60x = 2,577.32 × 1,081.68
4. Step 4: Simplify right side
   1,867.60x = 2,787,835.50
5. Step 5: Solve for x
   x = 2,787,835.50/1,867.60
6. Step 6: Final answer
   x = 1,492.74