Finding the Fourth Proportional to 2,773.86, 4,161.42 and 826.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.86 : 4,161.42 = 826.08 : x
2. Step 2: Convert to fraction form
   2,773.86/4,161.42 = 826.08/x
3. Step 3: Cross multiply
   2,773.86x = 4,161.42 × 826.08
4. Step 4: Simplify right side
   2,773.86x = 3,437,665.83
5. Step 5: Solve for x
   x = 3,437,665.83/2,773.86
6. Step 6: Final answer
   x = 1,239.31