Finding the Fourth Proportional to 2,980.67, 4,470.50 and 789.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.67 : 4,470.50 = 789.62 : x
2. Step 2: Convert to fraction form
   2,980.67/4,470.50 = 789.62/x
3. Step 3: Cross multiply
   2,980.67x = 4,470.50 × 789.62
4. Step 4: Simplify right side
   2,980.67x = 3,530,006.40
5. Step 5: Solve for x
   x = 3,530,006.40/2,980.67
6. Step 6: Final answer
   x = 1,184.30