3,919 + (4,71 - 2,974) - 2,399 + 0.04 - 1,113
= 3,919 + 1.736 - 2,399 + 0.04 - 1,113
= 3,919 + 1,736 - 2,399 - 1,073
= 5,655 - 2,399 - 1,113
= 3,256 - 1,113
= 2,143

Ответ: 2,143.