Finding the Fourth Proportional to 2,480.05, 3,714.89 and 1,489.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,480.05 : 3,714.89 = 1,489.72 : x
2. Step 2: Convert to fraction form
   2,480.05/3,714.89 = 1,489.72/x
3. Step 3: Cross multiply
   2,480.05x = 3,714.89 × 1,489.72
4. Step 4: Simplify right side
   2,480.05x = 5,534,145.93
5. Step 5: Solve for x
   x = 5,534,145.93/2,480.05
6. Step 6: Final answer
   x = 2,231.47