Finding the Fourth Proportional to 1,013.76, 1,399.32 and 791.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.76 : 1,399.32 = 791.82 : x
2. Step 2: Convert to fraction form
   1,013.76/1,399.32 = 791.82/x
3. Step 3: Cross multiply
   1,013.76x = 1,399.32 × 791.82
4. Step 4: Simplify right side
   1,013.76x = 1,108,009.56
5. Step 5: Solve for x
   x = 1,108,009.56/1,013.76
6. Step 6: Final answer
   x = 1,092.97