Finding the Fourth Proportional to 1,982.89, 2,736.12 and 1,098.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.89 : 2,736.12 = 1,098.58 : x
2. Step 2: Convert to fraction form
   1,982.89/2,736.12 = 1,098.58/x
3. Step 3: Cross multiply
   1,982.89x = 2,736.12 × 1,098.58
4. Step 4: Simplify right side
   1,982.89x = 3,005,827.54
5. Step 5: Solve for x
   x = 3,005,827.54/1,982.89
6. Step 6: Final answer
   x = 1,515.89