Finding the Fourth Proportional to 1,789.79, 2,469.32 and 1,081.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.79 : 2,469.32 = 1,081.85 : x
2. Step 2: Convert to fraction form
   1,789.79/2,469.32 = 1,081.85/x
3. Step 3: Cross multiply
   1,789.79x = 2,469.32 × 1,081.85
4. Step 4: Simplify right side
   1,789.79x = 2,671,428.43
5. Step 5: Solve for x
   x = 2,671,428.43/1,789.79
6. Step 6: Final answer
   x = 1,492.59