Finding the Fourth Proportional to 2,046.78, 3,068.01 and 812.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046.78 : 3,068.01 = 812.48 : x
2. Step 2: Convert to fraction form
   2,046.78/3,068.01 = 812.48/x
3. Step 3: Cross multiply
   2,046.78x = 3,068.01 × 812.48
4. Step 4: Simplify right side
   2,046.78x = 2,492,681.42
5. Step 5: Solve for x
   x = 2,492,681.42/2,046.78
6. Step 6: Final answer
   x = 1,217.86