Finding the Fourth Proportional to 2,017.24, 2,784.08 and 1,231.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.24 : 2,784.08 = 1,231.52 : x
2. Step 2: Convert to fraction form
   2,017.24/2,784.08 = 1,231.52/x
3. Step 3: Cross multiply
   2,017.24x = 2,784.08 × 1,231.52
4. Step 4: Simplify right side
   2,017.24x = 3,428,650.20
5. Step 5: Solve for x
   x = 3,428,650.20/2,017.24
6. Step 6: Final answer
   x = 1,699.67