Finding the Fourth Proportional to 2,118,200.84, 3,175,438.61 and 839,706.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,200.84 : 3,175,438.61 = 839,706.38 : x
2. Step 2: Convert to fraction form
   2,118,200.84/3,175,438.61 = 839,706.38/x
3. Step 3: Cross multiply
   2,118,200.84x = 3,175,438.61 × 839,706.38
4. Step 4: Simplify right side
   2,118,200.84x = 2,666,436,040,039.61
5. Step 5: Solve for x
   x = 2,666,436,040,039.61/2,118,200.84
6. Step 6: Final answer
   x = 1,258,821.16