The pattern is: ×1-4, ×2-4, ×3-4, ×4-4. Checking: 110×1-4=106, 106×2-4=208 (not 204, but close). Continuing: 204×3-4=608, 608×4-4=2428 (not 2384). Wait, let me recalculate: 110×1-4=106, 106×2-4=208, 208×3-4=620, 620×4-4=2476. This doesn't match. Alternative pattern: 110×1-4=106, 106×2-8=204, 204×3-204=408 (not 608). The series seems irregular. 608 should be 616 if following ×3-4 from 208. But 204 itself breaks the pattern. Given answer is 608.