Finding the Fourth Proportional to 1,452.59, 2,004.59 and 789.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.59 : 2,004.59 = 789.45 : x
2. Step 2: Convert to fraction form
   1,452.59/2,004.59 = 789.45/x
3. Step 3: Cross multiply
   1,452.59x = 2,004.59 × 789.45
4. Step 4: Simplify right side
   1,452.59x = 1,582,523.58
5. Step 5: Solve for x
   x = 1,582,523.58/1,452.59
6. Step 6: Final answer
   x = 1,089.45