Finding the Fourth Proportional to 3,945,819.72, 5,915,175.18 and 1,419,697.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945,819.72 : 5,915,175.18 = 1,419,697.56 : x
2. Step 2: Convert to fraction form
   3,945,819.72/5,915,175.18 = 1,419,697.56/x
3. Step 3: Cross multiply
   3,945,819.72x = 5,915,175.18 × 1,419,697.56
4. Step 4: Simplify right side
   3,945,819.72x = 8,397,759,770,018.56
5. Step 5: Solve for x
   x = 8,397,759,770,018.56/3,945,819.72
6. Step 6: Final answer
   x = 2,128,267.47