Finding the Fourth Proportional to 2,456.76, 3,685.32 and 897.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.76 : 3,685.32 = 897.16 : x
2. Step 2: Convert to fraction form
   2,456.76/3,685.32 = 897.16/x
3. Step 3: Cross multiply
   2,456.76x = 3,685.32 × 897.16
4. Step 4: Simplify right side
   2,456.76x = 3,306,321.69
5. Step 5: Solve for x
   x = 3,306,321.69/2,456.76
6. Step 6: Final answer
   x = 1,345.81