Finding the Fourth Proportional to 2,479.75, 3,717.69 and 1,308.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.75 : 3,717.69 = 1,308.22 : x
2. Step 2: Convert to fraction form
   2,479.75/3,717.69 = 1,308.22/x
3. Step 3: Cross multiply
   2,479.75x = 3,717.69 × 1,308.22
4. Step 4: Simplify right side
   2,479.75x = 4,863,556.41
5. Step 5: Solve for x
   x = 4,863,556.41/2,479.75
6. Step 6: Final answer
   x = 1,961.31