Finding the Fourth Proportional to 1,982.97, 2,736.45 and 1,098.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.97 : 2,736.45 = 1,098.72 : x
2. Step 2: Convert to fraction form
   1,982.97/2,736.45 = 1,098.72/x
3. Step 3: Cross multiply
   1,982.97x = 2,736.45 × 1,098.72
4. Step 4: Simplify right side
   1,982.97x = 3,006,592.34
5. Step 5: Solve for x
   x = 3,006,592.34/1,982.97
6. Step 6: Final answer
   x = 1,516.21