Finding the Fourth Proportional to 2,058.60, 3,086.96 and 888.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.60 : 3,086.96 = 888.05 : x
2. Step 2: Convert to fraction form
   2,058.60/3,086.96 = 888.05/x
3. Step 3: Cross multiply
   2,058.60x = 3,086.96 × 888.05
4. Step 4: Simplify right side
   2,058.60x = 2,741,359.39
5. Step 5: Solve for x
   x = 2,741,359.39/2,058.60
6. Step 6: Final answer
   x = 1,331.66