Finding the Fourth Proportional to 2,288.97, 3,158.78 and 1,241.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.97 : 3,158.78 = 1,241.03 : x
2. Step 2: Convert to fraction form
   2,288.97/3,158.78 = 1,241.03/x
3. Step 3: Cross multiply
   2,288.97x = 3,158.78 × 1,241.03
4. Step 4: Simplify right side
   2,288.97x = 3,920,140.74
5. Step 5: Solve for x
   x = 3,920,140.74/2,288.97
6. Step 6: Final answer
   x = 1,712.62