Finding the Fourth Proportional to 2,216.46, 3,320.37 and 980.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.46 : 3,320.37 = 980.94 : x
2. Step 2: Convert to fraction form
   2,216.46/3,320.37 = 980.94/x
3. Step 3: Cross multiply
   2,216.46x = 3,320.37 × 980.94
4. Step 4: Simplify right side
   2,216.46x = 3,257,083.75
5. Step 5: Solve for x
   x = 3,257,083.75/2,216.46
6. Step 6: Final answer
   x = 1,469.50