Finding the Fourth Proportional to 2,477,049.28, 3,714,682.60 and 857,378.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477,049.28 : 3,714,682.60 = 857,378.27 : x
2. Step 2: Convert to fraction form
   2,477,049.28/3,714,682.60 = 857,378.27/x
3. Step 3: Cross multiply
   2,477,049.28x = 3,714,682.60 × 857,378.27
4. Step 4: Simplify right side
   2,477,049.28x = 3,184,888,133,061.82
5. Step 5: Solve for x
   x = 3,184,888,133,061.82/2,477,049.28
6. Step 6: Final answer
   x = 1,285,758.89