Finding the Fourth Proportional to 3,446.66, 5,168.43 and 980.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,446.66 : 5,168.43 = 980.88 : x
2. Step 2: Convert to fraction form
   3,446.66/5,168.43 = 980.88/x
3. Step 3: Cross multiply
   3,446.66x = 5,168.43 × 980.88
4. Step 4: Simplify right side
   3,446.66x = 5,069,609.62
5. Step 5: Solve for x
   x = 5,069,609.62/3,446.66
6. Step 6: Final answer
   x = 1,470.88