The approximate value of 3 12 2 28 ÷ 2 21 98 is ?

Answer: Option A

$$\begin{array}{rl}& \text{Given expression,}\\ & =\frac{3\sqrt{12}}{2\sqrt{28}}\times \frac{\sqrt{98}}{2\sqrt{21}}\\ & =\frac{3\sqrt{4\times 3}}{2\sqrt{4\times 7}}\times \frac{\sqrt{49\times 2}}{2\sqrt{21}}\\ & =\frac{6\sqrt{3}}{4\sqrt{7}}\times \frac{7\sqrt{2}}{2\sqrt{21}}\\ & =\frac{21\sqrt{6}}{4\sqrt{7\times 21}}\\ & =\frac{21\sqrt{6}}{28\sqrt{3}}\\ & =\frac{3}{4}\sqrt{2}\\ & =\frac{3}{4}\times 1.414\\ & =3\times 0.3535\\ & =1.0605\end{array}$$