Finding the Fourth Proportional to 2,549.05, 3,825.42 and 905.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.05 : 3,825.42 = 905.61 : x
2. Step 2: Convert to fraction form
   2,549.05/3,825.42 = 905.61/x
3. Step 3: Cross multiply
   2,549.05x = 3,825.42 × 905.61
4. Step 4: Simplify right side
   2,549.05x = 3,464,338.61
5. Step 5: Solve for x
   x = 3,464,338.61/2,549.05
6. Step 6: Final answer
   x = 1,359.07