The volume of a right rectangular prism is given by the formula below
![V=\text{whl}](https://img.qammunity.org/2023/formulas/mathematics/college/lil52omcfj7x9mtknetg9nrooirwa8l354.png)
Thus, in our case,
![V=7\cdot11\cdot14.5=1116.5](https://img.qammunity.org/2023/formulas/mathematics/college/cdw7b0mtmpxyixz117eg006tt1y15se73u.png)
The volume of the container is 1116.5ft^3.
Finally, multiply the total volume by the density given in the problem, as follows
![\begin{gathered} \text{weight}=1116.5\cdot0.83=926.695 \\ \Rightarrow\text{weight}\approx927 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/ns25ik8ljahg4kzrmoh7r8cxllxlr7fiu7.png)
Rounded to the nearest pound, the answer is 927 pounds.