Finding the Fourth Proportional to 2,058.46, 3,087.72 and 1,646.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.46 : 3,087.72 = 1,646.58 : x
2. Step 2: Convert to fraction form
   2,058.46/3,087.72 = 1,646.58/x
3. Step 3: Cross multiply
   2,058.46x = 3,087.72 × 1,646.58
4. Step 4: Simplify right side
   2,058.46x = 5,084,172.21
5. Step 5: Solve for x
   x = 5,084,172.21/2,058.46
6. Step 6: Final answer
   x = 2,469.89