Finding the Fourth Proportional to 1,454.45, 2,007.15 and 791.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454.45 : 2,007.15 = 791.31 : x
2. Step 2: Convert to fraction form
   1,454.45/2,007.15 = 791.31/x
3. Step 3: Cross multiply
   1,454.45x = 2,007.15 × 791.31
4. Step 4: Simplify right side
   1,454.45x = 1,588,268.83
5. Step 5: Solve for x
   x = 1,588,268.83/1,454.45
6. Step 6: Final answer
   x = 1,092.00