Finding the Fourth Proportional to 2,456.58, 3,682.57 and 896.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.58 : 3,682.57 = 896.21 : x
2. Step 2: Convert to fraction form
   2,456.58/3,682.57 = 896.21/x
3. Step 3: Cross multiply
   2,456.58x = 3,682.57 × 896.21
4. Step 4: Simplify right side
   2,456.58x = 3,300,356.06
5. Step 5: Solve for x
   x = 3,300,356.06/2,456.58
6. Step 6: Final answer
   x = 1,343.48