Finding the Fourth Proportional to 978,105.58, 1,467,173.73 and 445,605.10

Step by Step Solution

1. Step 1: Write the proportion equation
   978,105.58 : 1,467,173.73 = 445,605.10 : x
2. Step 2: Convert to fraction form
   978,105.58/1,467,173.73 = 445,605.10/x
3. Step 3: Cross multiply
   978,105.58x = 1,467,173.73 × 445,605.10
4. Step 4: Simplify right side
   978,105.58x = 653,780,096,674.02
5. Step 5: Solve for x
   x = 653,780,096,674.02/978,105.58
6. Step 6: Final answer
   x = 668,414.65