Finding the Fourth Proportional to 1,105.25, 1,654.92 and 886.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.25 : 1,654.92 = 886.32 : x
2. Step 2: Convert to fraction form
   1,105.25/1,654.92 = 886.32/x
3. Step 3: Cross multiply
   1,105.25x = 1,654.92 × 886.32
4. Step 4: Simplify right side
   1,105.25x = 1,466,788.69
5. Step 5: Solve for x
   x = 1,466,788.69/1,105.25
6. Step 6: Final answer
   x = 1,327.12