Answer
$$d = 0.958 \space g/mL$$
Work Step by Step
$$V = 2.18 \space L \times \frac{1000 \space mL}{1 \space L} = 2180 \space mL$$
$$d = \frac{m}{V} = \frac{2088 \space g}{2180 \space mL} \approx 0.958 \space g/mL $$
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