Finding the Fourth Proportional to 2,058.88, 3,086.16 and 1,628.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.88 : 3,086.16 = 1,628.32 : x
2. Step 2: Convert to fraction form
   2,058.88/3,086.16 = 1,628.32/x
3. Step 3: Cross multiply
   2,058.88x = 3,086.16 × 1,628.32
4. Step 4: Simplify right side
   2,058.88x = 5,025,256.05
5. Step 5: Solve for x
   x = 5,025,256.05/2,058.88
6. Step 6: Final answer
   x = 2,440.77