Finding the Fourth Proportional to 2,875,585, 4,313,002.74 and 853,788.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,875,585 : 4,313,002.74 = 853,788.28 : x
2. Step 2: Convert to fraction form
   2,875,585/4,313,002.74 = 853,788.28/x
3. Step 3: Cross multiply
   2,875,585x = 4,313,002.74 × 853,788.28
4. Step 4: Simplify right side
   2,875,585x = 3,682,391,191,019.89
5. Step 5: Solve for x
   x = 3,682,391,191,019.89/2,875,585
6. Step 6: Final answer
   x = 1,280,571.15