You have the historic monthly prices of Microsoft Corporation's stocks.

The monthly prices are saved as MSFT in the RData file that you downloaded.

You can also re$-$download the data from this RData File: MSFT$.$RData

You can inspect the data frame and find out when it starts and ends.

Fit the "best" ARIMA model based on AIC to the monthly close prices.

Then use the ARIMA model and forecast the close price of MSFT in Aug $2024.$

Round your answer to two decimal places $($e$.$g$.125\mathrm{.}36)$