Finding the Fourth Proportional to 2,647,170, 3,970,380.06 and 849,816.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647,170 : 3,970,380.06 = 849,816.78 : x
2. Step 2: Convert to fraction form
   2,647,170/3,970,380.06 = 849,816.78/x
3. Step 3: Cross multiply
   2,647,170x = 3,970,380.06 × 849,816.78
4. Step 4: Simplify right side
   2,647,170x = 3,374,095,597,965.41
5. Step 5: Solve for x
   x = 3,374,095,597,965.41/2,647,170
6. Step 6: Final answer
   x = 1,274,604.80