Finding the Fourth Proportional to 2,061.45, 3,092.11 and 828.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.45 : 3,092.11 = 828.56 : x
2. Step 2: Convert to fraction form
   2,061.45/3,092.11 = 828.56/x
3. Step 3: Cross multiply
   2,061.45x = 3,092.11 × 828.56
4. Step 4: Simplify right side
   2,061.45x = 2,562,004.32
5. Step 5: Solve for x
   x = 2,562,004.32/2,061.45
6. Step 6: Final answer
   x = 1,242.82