Final answer:
The charge density at a specific point cannot be determined without the charge density function.
Step-by-step explanation:
The charge density at a point (1, π/4, 3) is determined by the charge enclosed within a small volume around that point. Given the charge density function, we can integrate it over the volume using the appropriate limits.
However, without the specific charge density function provided in the question, it is not possible to calculate the charge density at that point.