Finding the Fourth Proportional to 1,878.08, 2,591.85 and 1,081.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.08 : 2,591.85 = 1,081.53 : x
2. Step 2: Convert to fraction form
   1,878.08/2,591.85 = 1,081.53/x
3. Step 3: Cross multiply
   1,878.08x = 2,591.85 × 1,081.53
4. Step 4: Simplify right side
   1,878.08x = 2,803,150.57
5. Step 5: Solve for x
   x = 2,803,150.57/1,878.08
6. Step 6: Final answer
   x = 1,492.56