Visualise 3.847 on number line using successive magnification

Step 1: Consider a number line.
Step – 2 – Visualise line between numbers 3 and 4.
Step – 3 – Magnify space between numbers 3 and 4 into 10 equal parts.
Step – 4 – Visualise between number 3.7 and 3.8 minutely using a magnifying glass.
Step – 5 – Magnify and divide space between numbers 3.7 and 3.8 into 10 equal parts.
Step – 6 – Visualize the number 3.765 using a magnifying glass.

Hope this helps