Finding the Fourth Proportional to 2,231.38, 3,345.94 and 844.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.38 : 3,345.94 = 844.22 : x
2. Step 2: Convert to fraction form
   2,231.38/3,345.94 = 844.22/x
3. Step 3: Cross multiply
   2,231.38x = 3,345.94 × 844.22
4. Step 4: Simplify right side
   2,231.38x = 2,824,718.89
5. Step 5: Solve for x
   x = 2,824,718.89/2,231.38
6. Step 6: Final answer
   x = 1,265.91