Finding the Fourth Proportional to 2,442.72, 3,665.96 and 982.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442.72 : 3,665.96 = 982.80 : x
2. Step 2: Convert to fraction form
   2,442.72/3,665.96 = 982.80/x
3. Step 3: Cross multiply
   2,442.72x = 3,665.96 × 982.80
4. Step 4: Simplify right side
   2,442.72x = 3,602,905.49
5. Step 5: Solve for x
   x = 3,602,905.49/2,442.72
6. Step 6: Final answer
   x = 1,474.96