Finding the Fourth Proportional to 2,480.96, 3,721.47 and 1,019.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,480.96 : 3,721.47 = 1,019.78 : x
2. Step 2: Convert to fraction form
   2,480.96/3,721.47 = 1,019.78/x
3. Step 3: Cross multiply
   2,480.96x = 3,721.47 × 1,019.78
4. Step 4: Simplify right side
   2,480.96x = 3,795,080.68
5. Step 5: Solve for x
   x = 3,795,080.68/2,480.96
6. Step 6: Final answer
   x = 1,529.68