How to Format Prices using the Price Currency Interface in Magento 2

Model\Custom.php

<?php

namespace Daan\CustomModule\Model; // Or Controller, or Plugin, or anything actually.

use Magento\Framework\Pricing\PriceCurrencyInterface as CurrencyInterface;

class Custom {

	protected $currencyInterface;

	public function __construct(
		CurrencyInterface $currencyInterface
	) {
		$this->currencyInterface = $currencyInterface;
	}

	// Let's imagine I passed a valid $productCollection here.
	public function getMyFormattedPrice( $productCollection ) {
		$prices = [];
		
		foreach ( $productCollection as $product ) {
			$prices[] = $this->currencyInterface->format(
				$product->getPrice(), // the price value.
				false,                // don't include the container span.
				4                     // default precision is two decimals, but I want 4 for some reason.
			);
		}

		return $prices;
	}
}