Finding the Fourth Proportional to 2,081.27, 2,870.88 and 1,241.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.27 : 2,870.88 = 1,241.40 : x
2. Step 2: Convert to fraction form
   2,081.27/2,870.88 = 1,241.40/x
3. Step 3: Cross multiply
   2,081.27x = 2,870.88 × 1,241.40
4. Step 4: Simplify right side
   2,081.27x = 3,563,910.43
5. Step 5: Solve for x
   x = 3,563,910.43/2,081.27
6. Step 6: Final answer
   x = 1,712.38