Finding the Fourth Proportional to 1,105.72, 1,654.02 and 982.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.72 : 1,654.02 = 982.40 : x
2. Step 2: Convert to fraction form
   1,105.72/1,654.02 = 982.40/x
3. Step 3: Cross multiply
   1,105.72x = 1,654.02 × 982.40
4. Step 4: Simplify right side
   1,105.72x = 1,624,900.98
5. Step 5: Solve for x
   x = 1,624,900.98/1,105.72
6. Step 6: Final answer
   x = 1,469.54