Finding the Fourth Proportional to 2,774.48, 4,162.41 and 826.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.48 : 4,162.41 = 826.65 : x
2. Step 2: Convert to fraction form
   2,774.48/4,162.41 = 826.65/x
3. Step 3: Cross multiply
   2,774.48x = 4,162.41 × 826.65
4. Step 4: Simplify right side
   2,774.48x = 3,440,856.23
5. Step 5: Solve for x
   x = 3,440,856.23/2,774.48
6. Step 6: Final answer
   x = 1,240.18