The probability of missing the bottle on each shot is calculated as follows:
The probability of missing all 4 shots is:
\[ 0.9 \times 0.8 \times 0.65 \times 0.55 = 0.2874 \]
Therefore, the probability of hitting the bottle at least once in four shots is:
\[ 1 - 0.2874 = 0.7426 \]