Finding the Fourth Proportional to 2,677.42, 4,016.05 and 828.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,677.42 : 4,016.05 = 828.27 : x
2. Step 2: Convert to fraction form
   2,677.42/4,016.05 = 828.27/x
3. Step 3: Cross multiply
   2,677.42x = 4,016.05 × 828.27
4. Step 4: Simplify right side
   2,677.42x = 3,326,373.73
5. Step 5: Solve for x
   x = 3,326,373.73/2,677.42
6. Step 6: Final answer
   x = 1,242.38