Finding the Fourth Proportional to 2,022.73, 2,791.32 and 1,138.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,022.73 : 2,791.32 = 1,138.51 : x
2. Step 2: Convert to fraction form
   2,022.73/2,791.32 = 1,138.51/x
3. Step 3: Cross multiply
   2,022.73x = 2,791.32 × 1,138.51
4. Step 4: Simplify right side
   2,022.73x = 3,177,945.73
5. Step 5: Solve for x
   x = 3,177,945.73/2,022.73
6. Step 6: Final answer
   x = 1,571.12