Finding the Fourth Proportional to 1,613.94, 2,227.23 and 905.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.94 : 2,227.23 = 905.82 : x
2. Step 2: Convert to fraction form
   1,613.94/2,227.23 = 905.82/x
3. Step 3: Cross multiply
   1,613.94x = 2,227.23 × 905.82
4. Step 4: Simplify right side
   1,613.94x = 2,017,469.48
5. Step 5: Solve for x
   x = 2,017,469.48/1,613.94
6. Step 6: Final answer
   x = 1,250.03