Finding the Fourth Proportional to 2,485.27, 3,728.38 and 841.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.27 : 3,728.38 = 841.38 : x
2. Step 2: Convert to fraction form
   2,485.27/3,728.38 = 841.38/x
3. Step 3: Cross multiply
   2,485.27x = 3,728.38 × 841.38
4. Step 4: Simplify right side
   2,485.27x = 3,136,965.72
5. Step 5: Solve for x
   x = 3,136,965.72/2,485.27
6. Step 6: Final answer
   x = 1,262.22