A boat crosses a river of width 96.3m in which the current has a uniform speed of 1.82 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 1.87 m/s relative to the water. What is the magnitude of the speed of the boat relative to a stationary shore observer?
Answer in units of m/s.