Hayden's stock portfolio was worth $1,250 at the beginning of the year. The prices of his stocks fell in the first, second, and third quarters, reducing the value of his portfolio by $107, $28, and $59, respectively. What is the value of Hayden's portfolio now, in dollars?

The total reduction in the value of the portfolio due to the fall in stock prices is $107 + $28 + $59 = $<<107+28+59=194>>194.

Thus, Hayden's portfolio is worth $1,250 - $194 = $<<1250-194=1056>>1056. Answer: \boxed{1056}.