Finding the Fourth Proportional to 1,938.37, 2,674.89 and 1,099.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.37 : 2,674.89 = 1,099.15 : x
2. Step 2: Convert to fraction form
   1,938.37/2,674.89 = 1,099.15/x
3. Step 3: Cross multiply
   1,938.37x = 2,674.89 × 1,099.15
4. Step 4: Simplify right side
   1,938.37x = 2,940,098.66
5. Step 5: Solve for x
   x = 2,940,098.66/1,938.37
6. Step 6: Final answer
   x = 1,516.79