Convert from Oz and Lbs.
1 Pound = 453.59237 Grams
1 Ounce = 28.3495231 Grams
3628.73896 for Lbs
141.7476155 for Oz
Add them, and you get:
3770.4865755
I didn't know if you needed rounding - it was classified as college.
Hope this helped, and have a good day!