A​ company's defined benefit pension plan had a projected benefit obligation​ (PBO) of $ 390 comma 000 on January​ 1, Year 1. During Year​ 1, pension benefits paid were $ 80 comma 000. The settlement rate for the plan for Year 1 was 12​%. Service cost for the year was $ 92 comma 000. Plan assets​ (fair value) increased during the year by​ $50,000. What was the PBO at December​ 31, Year​ 1