The VIQ was not developed for the WAIS-IV, as more contemporary theories of intelligence (plus stats) found that the four-factor solution (VCI, PRI, WMI, PSI) was a better representation of the standardization data set. So there's no way to compute a VIQ with validity.

For your statistical entertainment, here's an article comparing various models for confirmatory factor analysis of the WAIS-IV:
https://pdfs.semanticscholar.org/55a4/44255cf1a07acf94135cfa055ea3e2bbfec7.pdf

...pronounced like the long vowel and first letter of the alphabet...