Finding the Fourth Proportional to 2,456.46, 3,684.06 and 812.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.46 : 3,684.06 = 812.52 : x
2. Step 2: Convert to fraction form
   2,456.46/3,684.06 = 812.52/x
3. Step 3: Cross multiply
   2,456.46x = 3,684.06 × 812.52
4. Step 4: Simplify right side
   2,456.46x = 2,993,372.43
5. Step 5: Solve for x
   x = 2,993,372.43/2,456.46
6. Step 6: Final answer
   x = 1,218.57