Finding the Fourth Proportional to 2,855.28, 4,283.60 and 1,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,855.28 : 4,283.60 = 1,100.50 : x
2. Step 2: Convert to fraction form
   2,855.28/4,283.60 = 1,100.50/x
3. Step 3: Cross multiply
   2,855.28x = 4,283.60 × 1,100.50
4. Step 4: Simplify right side
   2,855.28x = 4,714,100.12
5. Step 5: Solve for x
   x = 4,714,100.12/2,855.28
6. Step 6: Final answer
   x = 1,651.01