To solve the equation \( 102.5(x - 11.92) = 71.6 \), follow these steps:
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Divide both sides of the equation by 102.5:
\[ x - 11.92 = \frac{71.6}{102.5} \]
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Calculate \( \frac{71.6}{102.5} \):
\[ \frac{71.6}{102.5} \approx 0.698536 \]
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Now, add 11.92 to both sides:
\[ x = 0.698536 + 11.92 \]
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Calculate \( x \):
\[ x \approx 12.618536 \]
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Round \( x \) to three decimal places:
\[ x \approx 12.619 \]
Therefore, the solution for \( x \) rounded to three decimal places is \( \boxed{12.619} \).