Finding the Fourth Proportional to 1,982.90, 2,736.37 and 1,098.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.90 : 2,736.37 = 1,098.69 : x
2. Step 2: Convert to fraction form
   1,982.90/2,736.37 = 1,098.69/x
3. Step 3: Cross multiply
   1,982.90x = 2,736.37 × 1,098.69
4. Step 4: Simplify right side
   1,982.90x = 3,006,422.36
5. Step 5: Solve for x
   x = 3,006,422.36/1,982.90
6. Step 6: Final answer
   x = 1,516.17