To solve this problem, it looks like you are working with a sequence of fractions where each fraction has the format $(a.b.c)$. Let's analyze the sequence step by step:

Sequence:

1. $\frac{9.8.4}{4.7.9}$
2. $\frac{1.8.4}{3.6.2}$
3. $\frac{6.2.8}{2.3.8}$

From this pattern, I will look for commonalities or mathematical operations between the numerator and denominator pairs.

Step 1: Observe the format of the fractions.

Each number is written in the form of three digits separated by periods (e.g., $9.8.4$).

Step 2: Find a relationship or pattern.

1. Check if there's a mathematical relationship between the numerator and denominator in each term.
2. Analyze the evolution from one fraction to the next.

Step 3: Hypothesize a pattern.

If no clear arithmetic or geometric pattern is evident, the sequence could be symbolic, requiring further interpretation (e.g., digit manipulation).

Could you confirm if the numbers are meant to be treated as decimals, integers, or symbolic sequences? This will help clarify the approach.