Finding the Fourth Proportional to 2,569.28, 3,855.76 and 1,109.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.28 : 3,855.76 = 1,109.48 : x
2. Step 2: Convert to fraction form
   2,569.28/3,855.76 = 1,109.48/x
3. Step 3: Cross multiply
   2,569.28x = 3,855.76 × 1,109.48
4. Step 4: Simplify right side
   2,569.28x = 4,277,866.55
5. Step 5: Solve for x
   x = 4,277,866.55/2,569.28
6. Step 6: Final answer
   x = 1,665.01