Finding the Fourth Proportional to 3,215.83, 4,438.88 and 2,472.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,215.83 : 4,438.88 = 2,472.25 : x
2. Step 2: Convert to fraction form
   3,215.83/4,438.88 = 2,472.25/x
3. Step 3: Cross multiply
   3,215.83x = 4,438.88 × 2,472.25
4. Step 4: Simplify right side
   3,215.83x = 10,974,016.16
5. Step 5: Solve for x
   x = 10,974,016.16/3,215.83
6. Step 6: Final answer
   x = 3,412.50