A concert promoter sells tickets and has a marginal-profit function given below, where $\mathrm{P}^{\prime}(\mathrm{x})$ is in dollars per ticket. This means that the rate of change of total profit with respect to the number of tickets sold, $x$, is $P^{\prime}(x)$. Find the total profit from the sale of the first 90 tickets, disregarding any fixed costs.
\[
P^{\prime}(x)=9 x-1084
\]
The total profit is $\$$
(Round to the nearest cent as needed.)

Step 1 ：Given the marginal-profit function \(P^{\prime}(x)=9x-1084\), where \(P^{\prime}(x)\) is in dollars per ticket and \(x\) is the number of tickets sold.

Step 2 ：The total profit from the sale of the first 90 tickets is the integral of the marginal profit function from 0 to 90.

Step 3 ：Calculate the integral of \(P^{\prime}(x)=9x-1084\) from 0 to 90 to find the total profit.

Step 4 ：The total profit from the sale of the first 90 tickets is -61110 dollars.

Step 5 ：However, it's unusual for a profit to be negative. This could mean that the costs associated with selling the tickets (such as production costs, marketing, etc.) are greater than the revenue from ticket sales.

Step 6 ：Final Answer: The total profit from the sale of the first 90 tickets is \(\boxed{-\$61110}\).