Answer
\[54\]
Work Step by Step
To find the fourth term put \[n=4\] in the above formula, to get:
\[\begin{align}
& {{a}_{4}}={{a}_{1}}{{r}^{4-1}} \\
& =2\cdot {{3}^{3}} \\
& =2\cdot 27 \\
& =54
\end{align}\]
The fourth term of the geometric sequence is\[54\].
