Finding the Fourth Proportional to 2,980.31, 4,469.94 and 789.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.31 : 4,469.94 = 789.26 : x
2. Step 2: Convert to fraction form
   2,980.31/4,469.94 = 789.26/x
3. Step 3: Cross multiply
   2,980.31x = 4,469.94 × 789.26
4. Step 4: Simplify right side
   2,980.31x = 3,527,922.49
5. Step 5: Solve for x
   x = 3,527,922.49/2,980.31
6. Step 6: Final answer
   x = 1,183.75