Finding the Fourth Proportional to 2,016.24, 2,782.53 and 1,230.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.24 : 2,782.53 = 1,230.54 : x
2. Step 2: Convert to fraction form
   2,016.24/2,782.53 = 1,230.54/x
3. Step 3: Cross multiply
   2,016.24x = 2,782.53 × 1,230.54
4. Step 4: Simplify right side
   2,016.24x = 3,424,014.47
5. Step 5: Solve for x
   x = 3,424,014.47/2,016.24
6. Step 6: Final answer
   x = 1,698.22