Finding the Fourth Proportional to 2,774.88, 4,162.83 and 826.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.88 : 4,162.83 = 826.86 : x
2. Step 2: Convert to fraction form
   2,774.88/4,162.83 = 826.86/x
3. Step 3: Cross multiply
   2,774.88x = 4,162.83 × 826.86
4. Step 4: Simplify right side
   2,774.88x = 3,442,077.61
5. Step 5: Solve for x
   x = 3,442,077.61/2,774.88
6. Step 6: Final answer
   x = 1,240.44