Finding the Fourth Proportional to 2,456.84, 3,686.83 and 896.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.84 : 3,686.83 = 896.70 : x
2. Step 2: Convert to fraction form
   2,456.84/3,686.83 = 896.70/x
3. Step 3: Cross multiply
   2,456.84x = 3,686.83 × 896.70
4. Step 4: Simplify right side
   2,456.84x = 3,305,980.46
5. Step 5: Solve for x
   x = 3,305,980.46/2,456.84
6. Step 6: Final answer
   x = 1,345.62