CycloAlkane Nomenclature

[sfunds]

I am little bit confused in naming the following compound

      CH3CH2CH2
                \ / \
                 |   |
                / \ /\
            CH3       CH2CH3

1) parent name Hexane
2) cyclo
3) subsitutents or ethyl,methy, propyl
4c) 4-ethyl-2methyl-1propylcyclohexane

or is it

1 ethyl 3 methyl 4 propylcyclohexane

I thought as per rule 4c i have to name 1 ethyl-3 methyl 4 propylcyclohexane using alphabetic rule

but the first one is having
lower lower locants

which one is right.

Again the rule says sum of subsitutents is it actual sum ie in above case (4+2+1) and (1+3+4) respectively

Please clarify
Thanks

Shweta