Finding the Fourth Proportional to 2,017.16, 2,782.98 and 1,260.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.16 : 2,782.98 = 1,260.42 : x
2. Step 2: Convert to fraction form
   2,017.16/2,782.98 = 1,260.42/x
3. Step 3: Cross multiply
   2,017.16x = 2,782.98 × 1,260.42
4. Step 4: Simplify right side
   2,017.16x = 3,507,723.65
5. Step 5: Solve for x
   x = 3,507,723.65/2,017.16
6. Step 6: Final answer
   x = 1,738.95