Correct Answer:

Solution : According to the given figures –
1. A figure is divided into four triangles, so the leftmost triangle doesn't contain any figure.
2. All the figures present in the triangles rotate in the clockwise direction.
3. In each step, the figure that comes in the rightmost triangle is replaced by a new figure.
So, following the above pattern, the required figure will be as follows –

Therefore, the figure in the fourth option is the required figure. Hence, the fourth option is correct.