Finding the Fourth Proportional to 2,774.25, 4,162.06 and 826.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.25 : 4,162.06 = 826.45 : x
2. Step 2: Convert to fraction form
   2,774.25/4,162.06 = 826.45/x
3. Step 3: Cross multiply
   2,774.25x = 4,162.06 × 826.45
4. Step 4: Simplify right side
   2,774.25x = 3,439,734.49
5. Step 5: Solve for x
   x = 3,439,734.49/2,774.25
6. Step 6: Final answer
   x = 1,239.88