Finding the Fourth Proportional to 2,919,056.12, 4,379,002.07 and 897,469.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,919,056.12 : 4,379,002.07 = 897,469.78 : x
2. Step 2: Convert to fraction form
   2,919,056.12/4,379,002.07 = 897,469.78/x
3. Step 3: Cross multiply
   2,919,056.12x = 4,379,002.07 × 897,469.78
4. Step 4: Simplify right side
   2,919,056.12x = 3,930,022,019,895.10
5. Step 5: Solve for x
   x = 3,930,022,019,895.10/2,919,056.12
6. Step 6: Final answer
   x = 1,346,333.15