Finding the Fourth Proportional to 2,058.31, 3,087.76 and 759.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.31 : 3,087.76 = 759.69 : x
2. Step 2: Convert to fraction form
   2,058.31/3,087.76 = 759.69/x
3. Step 3: Cross multiply
   2,058.31x = 3,087.76 × 759.69
4. Step 4: Simplify right side
   2,058.31x = 2,345,740.39
5. Step 5: Solve for x
   x = 2,345,740.39/2,058.31
6. Step 6: Final answer
   x = 1,139.64