Finding the Fourth Proportional to 1,105.22, 1,650.55 and 886.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.22 : 1,650.55 = 886.16 : x
2. Step 2: Convert to fraction form
   1,105.22/1,650.55 = 886.16/x
3. Step 3: Cross multiply
   1,105.22x = 1,650.55 × 886.16
4. Step 4: Simplify right side
   1,105.22x = 1,462,653.30
5. Step 5: Solve for x
   x = 1,462,653.30/1,105.22
6. Step 6: Final answer
   x = 1,323.41