Finding the Fourth Proportional to 1,105.74, 1,655.69 and 885.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.74 : 1,655.69 = 885.33 : x
2. Step 2: Convert to fraction form
   1,105.74/1,655.69 = 885.33/x
3. Step 3: Cross multiply
   1,105.74x = 1,655.69 × 885.33
4. Step 4: Simplify right side
   1,105.74x = 1,465,832.03
5. Step 5: Solve for x
   x = 1,465,832.03/1,105.74
6. Step 6: Final answer
   x = 1,325.66