Chemistry

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Piece of iron weighs 20 pounds and measures 1 ft. by 1 ft. by 4in. What is its density in grams/cc?
20lbs/1 x 12inx12inx4in/1 x .454kg/1lb x 1g/1000kg x 1in^3/2.54cc=
20/1 x 576/1 x .454/1 x 1g/1000 x 1/2.54cc=
13.28g/cc
The right answer is supposed to be.96g/cc
Why is my answer incorrect?

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