Finding the Fourth Proportional to 3,087.89, 4,261.37 and 1,761.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,087.89 : 4,261.37 = 1,761.92 : x
2. Step 2: Convert to fraction form
   3,087.89/4,261.37 = 1,761.92/x
3. Step 3: Cross multiply
   3,087.89x = 4,261.37 × 1,761.92
4. Step 4: Simplify right side
   3,087.89x = 7,508,162.91
5. Step 5: Solve for x
   x = 7,508,162.91/3,087.89
6. Step 6: Final answer
   x = 2,431.49