Finding the Fourth Proportional to 1,983.18, 2,736.56 and 1,098.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.18 : 2,736.56 = 1,098.76 : x
2. Step 2: Convert to fraction form
   1,983.18/2,736.56 = 1,098.76/x
3. Step 3: Cross multiply
   1,983.18x = 2,736.56 × 1,098.76
4. Step 4: Simplify right side
   1,983.18x = 3,006,818.57
5. Step 5: Solve for x
   x = 3,006,818.57/1,983.18
6. Step 6: Final answer
   x = 1,516.16