Finding the Fourth Proportional to 2,227.94, 3,340.17 and 841.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.94 : 3,340.17 = 841.22 : x
2. Step 2: Convert to fraction form
   2,227.94/3,340.17 = 841.22/x
3. Step 3: Cross multiply
   2,227.94x = 3,340.17 × 841.22
4. Step 4: Simplify right side
   2,227.94x = 2,809,817.81
5. Step 5: Solve for x
   x = 2,809,817.81/2,227.94
6. Step 6: Final answer
   x = 1,261.17