Finding the Fourth Proportional to 1,885.82, 2,825.85 and 789.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,885.82 : 2,825.85 = 789.59 : x
2. Step 2: Convert to fraction form
   1,885.82/2,825.85 = 789.59/x
3. Step 3: Cross multiply
   1,885.82x = 2,825.85 × 789.59
4. Step 4: Simplify right side
   1,885.82x = 2,231,269.97
5. Step 5: Solve for x
   x = 2,231,269.97/1,885.82
6. Step 6: Final answer
   x = 1,183.18