Finding the Fourth Proportional to 2,521.31, 3,782.56 and 2,479.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.31 : 3,782.56 = 2,479.46 : x
2. Step 2: Convert to fraction form
   2,521.31/3,782.56 = 2,479.46/x
3. Step 3: Cross multiply
   2,521.31x = 3,782.56 × 2,479.46
4. Step 4: Simplify right side
   2,521.31x = 9,378,706.22
5. Step 5: Solve for x
   x = 9,378,706.22/2,521.31
6. Step 6: Final answer
   x = 3,719.78