Finding the Fourth Proportional to 2,061.44, 3,091.46 and 828.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.44 : 3,091.46 = 828.54 : x
2. Step 2: Convert to fraction form
   2,061.44/3,091.46 = 828.54/x
3. Step 3: Cross multiply
   2,061.44x = 3,091.46 × 828.54
4. Step 4: Simplify right side
   2,061.44x = 2,561,398.27
5. Step 5: Solve for x
   x = 2,561,398.27/2,061.44
6. Step 6: Final answer
   x = 1,242.53