How do I make things line up horizontally?

When adding options, sometimes things do not line up the way you want. An example is shown in figure 1, where some text and three images are placed in a rough grid.

Figure 1. the misaligned content

In this case it would look better if the two lower images lined up, as shown in figure 2.

Figure 2. the aligned content

The misaligned version was created by the options shown in figure 3. The content was split into two columns, with the text and one image added to the left column, and the other two images added to the right column.

Figure 3. the misaligned content options

The correctly aligned version was created by the options shown in figure 4. The content was split into two columns two times. The text and upper image were added to the upper column split. The lower images were added to the lower column split.

Figure 4. the aligned content options