Finding the Fourth Proportional to 2,675.39, 4,013.69 and 826.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,675.39 : 4,013.69 = 826.44 : x
2. Step 2: Convert to fraction form
   2,675.39/4,013.69 = 826.44/x
3. Step 3: Cross multiply
   2,675.39x = 4,013.69 × 826.44
4. Step 4: Simplify right side
   2,675.39x = 3,317,069.83
5. Step 5: Solve for x
   x = 3,317,069.83/2,675.39
6. Step 6: Final answer
   x = 1,239.85