Finding the Fourth Proportional to 3,568.78, 5,353.67 and 1,103.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,568.78 : 5,353.67 = 1,103.28 : x
2. Step 2: Convert to fraction form
   3,568.78/5,353.67 = 1,103.28/x
3. Step 3: Cross multiply
   3,568.78x = 5,353.67 × 1,103.28
4. Step 4: Simplify right side
   3,568.78x = 5,906,597.04
5. Step 5: Solve for x
   x = 5,906,597.04/3,568.78
6. Step 6: Final answer
   x = 1,655.07