Finding the Fourth Proportional to 636,453.94, 954,144.69 and 276,353.86

Step by Step Solution

1. Step 1: Write the proportion equation
   636,453.94 : 954,144.69 = 276,353.86 : x
2. Step 2: Convert to fraction form
   636,453.94/954,144.69 = 276,353.86/x
3. Step 3: Cross multiply
   636,453.94x = 954,144.69 × 276,353.86
4. Step 4: Simplify right side
   636,453.94x = 263,681,568,080.00
5. Step 5: Solve for x
   x = 263,681,568,080.00/636,453.94
6. Step 6: Final answer
   x = 414,297.96