Finding the Fourth Proportional to 1,397.52, 1,928.54 and 791.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.52 : 1,928.54 = 791.82 : x
2. Step 2: Convert to fraction form
   1,397.52/1,928.54 = 791.82/x
3. Step 3: Cross multiply
   1,397.52x = 1,928.54 × 791.82
4. Step 4: Simplify right side
   1,397.52x = 1,527,056.54
5. Step 5: Solve for x
   x = 1,527,056.54/1,397.52
6. Step 6: Final answer
   x = 1,092.69