1. Set up a proportion:

* We know 1 kg = 2.2 pounds

* We want to find out how many kilograms are in 1.1 pounds. Let 'x' represent the unknown number of kilograms.

This can be written as a proportion:

1 kg / 2.2 pounds = x kg / 1.1 pounds

2. Solve for x:

* Cross-multiply: 1 kg * 1.1 pounds = 2.2 pounds * x kg

* Simplify: 1.1 kg * pounds = 2.2 pounds * x kg

* Isolate x: x kg = (1.1 kg * pounds) / (2.2 pounds)

* Cancel out 'pounds' on both sides: x kg = 1.1 kg / 2.2

* Calculate: x = 0.5 kg

Answer: There are 0.5 kilograms in 1.1 pounds.