Finding the Fourth Proportional to 1,085.48, 1,498.08 and 791.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.48 : 1,498.08 = 791.03 : x
2. Step 2: Convert to fraction form
   1,085.48/1,498.08 = 791.03/x
3. Step 3: Cross multiply
   1,085.48x = 1,498.08 × 791.03
4. Step 4: Simplify right side
   1,085.48x = 1,185,026.22
5. Step 5: Solve for x
   x = 1,185,026.22/1,085.48
6. Step 6: Final answer
   x = 1,091.71