Finding the Fourth Proportional to 1,789.57, 2,469.77 and 1,081.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.57 : 2,469.77 = 1,081.77 : x
2. Step 2: Convert to fraction form
   1,789.57/2,469.77 = 1,081.77/x
3. Step 3: Cross multiply
   1,789.57x = 2,469.77 × 1,081.77
4. Step 4: Simplify right side
   1,789.57x = 2,671,723.09
5. Step 5: Solve for x
   x = 2,671,723.09/1,789.57
6. Step 6: Final answer
   x = 1,492.94