Finding the Fourth Proportional to 2,017.24, 2,783.97 and 1,309.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.24 : 2,783.97 = 1,309.43 : x
2. Step 2: Convert to fraction form
   2,017.24/2,783.97 = 1,309.43/x
3. Step 3: Cross multiply
   2,017.24x = 2,783.97 × 1,309.43
4. Step 4: Simplify right side
   2,017.24x = 3,645,420.80
5. Step 5: Solve for x
   x = 3,645,420.80/2,017.24
6. Step 6: Final answer
   x = 1,807.14