Finding the Fourth Proportional to 1,446.24, 1,995.60 and 980.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.24 : 1,995.60 = 980.16 : x
2. Step 2: Convert to fraction form
   1,446.24/1,995.60 = 980.16/x
3. Step 3: Cross multiply
   1,446.24x = 1,995.60 × 980.16
4. Step 4: Simplify right side
   1,446.24x = 1,956,007.30
5. Step 5: Solve for x
   x = 1,956,007.30/1,446.24
6. Step 6: Final answer
   x = 1,352.48