Finding the Fourth Proportional to 3,172.82, 4,757.52 and 980.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,172.82 : 4,757.52 = 980.96 : x
2. Step 2: Convert to fraction form
   3,172.82/4,757.52 = 980.96/x
3. Step 3: Cross multiply
   3,172.82x = 4,757.52 × 980.96
4. Step 4: Simplify right side
   3,172.82x = 4,666,936.82
5. Step 5: Solve for x
   x = 4,666,936.82/3,172.82
6. Step 6: Final answer
   x = 1,470.91