Finding the Fourth Proportional to 2,017.20, 2,784.04 and 1,133.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.20 : 2,784.04 = 1,133.08 : x
2. Step 2: Convert to fraction form
   2,017.20/2,784.04 = 1,133.08/x
3. Step 3: Cross multiply
   2,017.20x = 2,784.04 × 1,133.08
4. Step 4: Simplify right side
   2,017.20x = 3,154,540.04
5. Step 5: Solve for x
   x = 3,154,540.04/2,017.20
6. Step 6: Final answer
   x = 1,563.82