Input expression
1000/(3.142∗9)2∗1/9.483∗2.2/1
Let's assume that x2 is just another form for x2, and rewrite expression in more convenient form
(3.142∗9)21000∗9.4831∗12.2
Now, let's reduce expression into one fraction and compute expression in brackets
28.2782∗9.4831000∗2.2
And the last calculations
799.645∗9.4832200=7583.0362200=0.2901
The answer is 0.2901