Arturo bought a Tablet for $ 4,800 to be paid in four semesters, each payment is made at the end of each semester. Since Arturo will not have enough liquidity in the last two semesters, he requests that the payment pattern be as follows:

the amount of each of the first two payments will be equal to half the amount of the third payment (each separately represents half of the third), and the amount of the fourth payment will be equal to three times the amount of the third.

The financing rate will be 9.14% annual nominal capitalizable every 28 days. Determine the amount of the fourth payment (express WITHOUT using a $ sign and round to hundredths):