Convert all masses to grams, then add and round.<br><br>
&bull; 1.08 kg = 1080 g<br>
&bull; 490 g = 490 g<br>
&bull; 1 \( \frac{2}{7} \) kg = \( \frac{9}{7} \) kg = \( \frac{9000}{7} \) g &asymp; 1285.714... g<br>
&bull; Total = 1080 + 490 + 1285.714... = 2855.714... g<br>
&bull; Rounded to nearest gram: 2856 g<br>
<br>
Final Answer: D: 2856 g