Final answer:
The question lacks necessary information to determine the length of x, as side lengths or ratios are required to calculate values using similar triangle properties.
Step-by-step explanation:
It appears that the question provided is missing essential information that would enable me to calculate the value of x. The statement ΔMNO ~ ΔPQR indicates that triangles MNO and PQR are similar; however, without specific side lengths or the context that tells where x is located within these triangles, we cannot determine its value. Given proper side lengths or ratios, we would set up a proportion based on corresponding sides of similar triangles to solve for x.