Finding the Fourth Proportional to 2,560,105.84, 3,838,873.06 and 853,645.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560,105.84 : 3,838,873.06 = 853,645.03 : x
2. Step 2: Convert to fraction form
   2,560,105.84/3,838,873.06 = 853,645.03/x
3. Step 3: Cross multiply
   2,560,105.84x = 3,838,873.06 × 853,645.03
4. Step 4: Simplify right side
   2,560,105.84x = 3,277,034,908,469.89
5. Step 5: Solve for x
   x = 3,277,034,908,469.89/2,560,105.84
6. Step 6: Final answer
   x = 1,280,038.84