Math Problem Solver

Original numbers in ascending order: $227485$, $667268$, $674338$, $770782$
Sum: $2339873$
Mean: $\frac{2339873}{4} = 584968.25$
Sample standard deviation: $\frac{\sqrt{236108299713}}{2} \approx 242954.8825$
Median: $670803$
Mode: No mode