Finding the Fourth Proportional to 2,058.84, 3,087.62 and 671.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.84 : 3,087.62 = 671.86 : x
2. Step 2: Convert to fraction form
   2,058.84/3,087.62 = 671.86/x
3. Step 3: Cross multiply
   2,058.84x = 3,087.62 × 671.86
4. Step 4: Simplify right side
   2,058.84x = 2,074,445.01
5. Step 5: Solve for x
   x = 2,074,445.01/2,058.84
6. Step 6: Final answer
   x = 1,007.58