Finding the Fourth Proportional to 1,013.34, 1,396.52 and 791.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.34 : 1,396.52 = 791.94 : x
2. Step 2: Convert to fraction form
   1,013.34/1,396.52 = 791.94/x
3. Step 3: Cross multiply
   1,013.34x = 1,396.52 × 791.94
4. Step 4: Simplify right side
   1,013.34x = 1,105,960.05
5. Step 5: Solve for x
   x = 1,105,960.05/1,013.34
6. Step 6: Final answer
   x = 1,091.40