Finding the Fourth Proportional to 1,351.52, 1,865.12 and 791.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.52 : 1,865.12 = 791.68 : x
2. Step 2: Convert to fraction form
   1,351.52/1,865.12 = 791.68/x
3. Step 3: Cross multiply
   1,351.52x = 1,865.12 × 791.68
4. Step 4: Simplify right side
   1,351.52x = 1,476,578.20
5. Step 5: Solve for x
   x = 1,476,578.20/1,351.52
6. Step 6: Final answer
   x = 1,092.53