Finding the Fourth Proportional to 2,826.22, 4,238.78 and 1,071.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,826.22 : 4,238.78 = 1,071.38 : x
2. Step 2: Convert to fraction form
   2,826.22/4,238.78 = 1,071.38/x
3. Step 3: Cross multiply
   2,826.22x = 4,238.78 × 1,071.38
4. Step 4: Simplify right side
   2,826.22x = 4,541,344.12
5. Step 5: Solve for x
   x = 4,541,344.12/2,826.22
6. Step 6: Final answer
   x = 1,606.86