Finding the Fourth Proportional to 1,938.18, 2,673.83 and 1,151.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,938.18 : 2,673.83 = 1,151.78 : x
2. Step 2: Convert to fraction form
   1,938.18/2,673.83 = 1,151.78/x
3. Step 3: Cross multiply
   1,938.18x = 2,673.83 × 1,151.78
4. Step 4: Simplify right side
   1,938.18x = 3,079,644.79
5. Step 5: Solve for x
   x = 3,079,644.79/1,938.18
6. Step 6: Final answer
   x = 1,588.94