Finding the Fourth Proportional to 1,454.21, 2,006.82 and 791.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454.21 : 2,006.82 = 791.07 : x
2. Step 2: Convert to fraction form
   1,454.21/2,006.82 = 791.07/x
3. Step 3: Cross multiply
   1,454.21x = 2,006.82 × 791.07
4. Step 4: Simplify right side
   1,454.21x = 1,587,535.10
5. Step 5: Solve for x
   x = 1,587,535.10/1,454.21
6. Step 6: Final answer
   x = 1,091.68