Finding the Fourth Proportional to 3,087.57, 4,260.81 and 1,761.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,087.57 : 4,260.81 = 1,761.27 : x
2. Step 2: Convert to fraction form
   3,087.57/4,260.81 = 1,761.27/x
3. Step 3: Cross multiply
   3,087.57x = 4,260.81 × 1,761.27
4. Step 4: Simplify right side
   3,087.57x = 7,504,436.83
5. Step 5: Solve for x
   x = 7,504,436.83/3,087.57
6. Step 6: Final answer
   x = 2,430.53