Now, we are going to tackle a problem like one you will often find in the field. As in all field problems, the first things necessary to compute a single proportionate corner restoration are first, the record courses, and second the retracement courses. Here is the record course between Sections 1 and 2. Note the fractional distance indicating the one-quarter corner is not at midpoint.

Here is the retracement, shown in Lat. and Dep. format (cardinal equivalents), and notice the one-quarter corner is lost. Also notice that another complication exists. There are departures indicated in each retracement line, East 0.18, East 0.17 and a final falling of 0.24.