Finding the Fourth Proportional to 1,878.24, 2,591.82 and 1,081.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.24 : 2,591.82 = 1,081.63 : x
2. Step 2: Convert to fraction form
   1,878.24/2,591.82 = 1,081.63/x
3. Step 3: Cross multiply
   1,878.24x = 2,591.82 × 1,081.63
4. Step 4: Simplify right side
   1,878.24x = 2,803,383.79
5. Step 5: Solve for x
   x = 2,803,383.79/1,878.24
6. Step 6: Final answer
   x = 1,492.56