Finding the Fourth Proportional to 2,018.24, 2,786.56 and 1,521.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.24 : 2,786.56 = 1,521.92 : x
2. Step 2: Convert to fraction form
   2,018.24/2,786.56 = 1,521.92/x
3. Step 3: Cross multiply
   2,018.24x = 2,786.56 × 1,521.92
4. Step 4: Simplify right side
   2,018.24x = 4,240,921.40
5. Step 5: Solve for x
   x = 4,240,921.40/2,018.24
6. Step 6: Final answer
   x = 2,101.30