Finding the Fourth Proportional to 3,569.15, 5,353.78 and 1,103.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,569.15 : 5,353.78 = 1,103.92 : x
2. Step 2: Convert to fraction form
   3,569.15/5,353.78 = 1,103.92/x
3. Step 3: Cross multiply
   3,569.15x = 5,353.78 × 1,103.92
4. Step 4: Simplify right side
   3,569.15x = 5,910,144.82
5. Step 5: Solve for x
   x = 5,910,144.82/3,569.15
6. Step 6: Final answer
   x = 1,655.90