Finding the Fourth Proportional to 1,452.82, 2,004.90 and 789.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.82 : 2,004.90 = 789.67 : x
2. Step 2: Convert to fraction form
   1,452.82/2,004.90 = 789.67/x
3. Step 3: Cross multiply
   1,452.82x = 2,004.90 × 789.67
4. Step 4: Simplify right side
   1,452.82x = 1,583,212.42
5. Step 5: Solve for x
   x = 1,583,212.42/1,452.82
6. Step 6: Final answer
   x = 1,089.75