Finding the Fourth Proportional to 2,980.30, 4,470.06 and 789.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.30 : 4,470.06 = 789.16 : x
2. Step 2: Convert to fraction form
   2,980.30/4,470.06 = 789.16/x
3. Step 3: Cross multiply
   2,980.30x = 4,470.06 × 789.16
4. Step 4: Simplify right side
   2,980.30x = 3,527,592.55
5. Step 5: Solve for x
   x = 3,527,592.55/2,980.30
6. Step 6: Final answer
   x = 1,183.64