Finding the Fourth Proportional to 1,982.86, 2,736.36 and 1,098.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.86 : 2,736.36 = 1,098.72 : x
2. Step 2: Convert to fraction form
   1,982.86/2,736.36 = 1,098.72/x
3. Step 3: Cross multiply
   1,982.86x = 2,736.36 × 1,098.72
4. Step 4: Simplify right side
   1,982.86x = 3,006,493.46
5. Step 5: Solve for x
   x = 3,006,493.46/1,982.86
6. Step 6: Final answer
   x = 1,516.24