r = 1728 units
Step-by-step explanation:
Volume of sphere: V = (4/3)(pi)(r^3), were r is the radius.
Solving this for r^3, we get
V V 7234.56 units^3
= r^3 = so that
(4/3)(pi) (4/3)(3.14) 4.19
Thus, r = 1728 units