To round to the nearest tenth, we need to consider the digits in the tenths and the hundredths.
In this case the number in the tenths is 4 so we know that if the number in the hundredths is less than 5, our answer will be 7.4 and if it is 5 or greater our answer will be 7.5.
Now as 4 is in the hundredths place, and 4 < 5 we have that:
7.445 rounded to the nearest tenth is 7.4.