Finding the Fourth Proportional to 3,215.34, 4,819.59 and 1,240.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,215.34 : 4,819.59 = 1,240.38 : x
2. Step 2: Convert to fraction form
   3,215.34/4,819.59 = 1,240.38/x
3. Step 3: Cross multiply
   3,215.34x = 4,819.59 × 1,240.38
4. Step 4: Simplify right side
   3,215.34x = 5,978,123.04
5. Step 5: Solve for x
   x = 5,978,123.04/3,215.34
6. Step 6: Final answer
   x = 1,859.25