Finding the Fourth Proportional to 672,002.90, 1,008,465.15 and 298,294.10

Step by Step Solution

1. Step 1: Write the proportion equation
   672,002.90 : 1,008,465.15 = 298,294.10 : x
2. Step 2: Convert to fraction form
   672,002.90/1,008,465.15 = 298,294.10/x
3. Step 3: Cross multiply
   672,002.90x = 1,008,465.15 × 298,294.10
4. Step 4: Simplify right side
   672,002.90x = 300,819,204,300.62
5. Step 5: Solve for x
   x = 300,819,204,300.62/672,002.90
6. Step 6: Final answer
   x = 447,645.69