To find the antilogarithm of a number, we raise the base of the logarithm (usually base 10) to the power of that number. In this case, you're looking for the antilogarithm of 2.4191 in base 10.
The calculation is:
\[ 10^{2.4191} \]
Using a calculator, we find:
\[ 10^{2.4191} \approx 263.151 \]
So, the antilogarithm of 2.4191 is approximately 263.151.