Finding the Fourth Proportional to 978,155.46, 1,467,238.41 and 445,303.98

Step by Step Solution

1. Step 1: Write the proportion equation
   978,155.46 : 1,467,238.41 = 445,303.98 : x
2. Step 2: Convert to fraction form
   978,155.46/1,467,238.41 = 445,303.98/x
3. Step 3: Cross multiply
   978,155.46x = 1,467,238.41 × 445,303.98
4. Step 4: Simplify right side
   978,155.46x = 653,367,103,581.87
5. Step 5: Solve for x
   x = 653,367,103,581.87/978,155.46
6. Step 6: Final answer
   x = 667,958.35