[
  "Convert 1.08 kg to grams: 1.08 × 1000 = 1080 g.",
  "Convert 1 2/7 kg to grams: 9/7 × 1000 = 9000/7 ≈ 1285.714 g.",
  "Add all three: 1080 + 490 + 1285.714 = 2855.714, which rounds to 2856 g."
]