Finding the Fourth Proportional to 1,982.47, 2,735.84 and 1,098.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.47 : 2,735.84 = 1,098.31 : x
2. Step 2: Convert to fraction form
   1,982.47/2,735.84 = 1,098.31/x
3. Step 3: Cross multiply
   1,982.47x = 2,735.84 × 1,098.31
4. Step 4: Simplify right side
   1,982.47x = 3,004,800.43
5. Step 5: Solve for x
   x = 3,004,800.43/1,982.47
6. Step 6: Final answer
   x = 1,515.69