Calculate the ratio of prevention to failure costs, based on the information provided below.

Failure costs

Defective products

R $5,500\mathrm{.}00$

Engineered scrap

R $17,354\mathrm{.}00$

Nonengineered scrap

R $122,567\mathrm{.}00$

Consumer adjustments

R $633,000\mathrm{.}00$

TOTAL

R $778,421\mathrm{.}00$

Prevention costs

Quality training

R $15,500\mathrm{.}00$

Product redesign

R $17,000\mathrm{.}00$

Process engineering:

$*$ Corporate

$*$ Plant

R $125,745\mathrm{.}00$

R $40,000\mathrm{.}00$

TOTAL

R $198,245\mathrm{.}00$

Appraisal costs

Receiving inspection

R $35,600\mathrm{.}00$

Line $1$ inspection

R $43,526\mathrm{.}00$

Line $2$ inspection

R $55,679\mathrm{.}00$

Spot checking

R $62,000\mathrm{.}00$

TOTAL

R $196,805\mathrm{.}00$

Select one:

$1.$

$0\mathrm{.}3689$

$2.$

$1\mathrm{.}6570$

$3.$

$0\mathrm{.}8912$

$4.$

$3\mathrm{.}8674$

$5.$

$0\mathrm{.}2547$