My wave calculations give me 1.1938 as target for wave 4. For me and by analysing the current graphs, looks like they want to reach target by doing the sequence of waves in the chart. For a brief view of how do I reach that conclusions, take a look at the following link. Not ready understandable, but is my own private method for counting and measuring waves. https://i.imgur.com/7UulOCg.png