Finding the Fourth Proportional to 2,061.96, 3,092.16 and 828.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.96 : 3,092.16 = 828.72 : x
2. Step 2: Convert to fraction form
   2,061.96/3,092.16 = 828.72/x
3. Step 3: Cross multiply
   2,061.96x = 3,092.16 × 828.72
4. Step 4: Simplify right side
   2,061.96x = 2,562,534.84
5. Step 5: Solve for x
   x = 2,562,534.84/2,061.96
6. Step 6: Final answer
   x = 1,242.77