Finding the Fourth Proportional to 1,419.04, 1,958.25 and 789.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.04 : 1,958.25 = 789.49 : x
2. Step 2: Convert to fraction form
   1,419.04/1,958.25 = 789.49/x
3. Step 3: Cross multiply
   1,419.04x = 1,958.25 × 789.49
4. Step 4: Simplify right side
   1,419.04x = 1,546,024.20
5. Step 5: Solve for x
   x = 1,546,024.20/1,419.04
6. Step 6: Final answer
   x = 1,089.49