Finding the Fourth Proportional to 778,248, 1,073,982.24 and 420,552

Step by Step Solution

1. Step 1: Write the proportion equation
   778,248 : 1,073,982.24 = 420,552 : x
2. Step 2: Convert to fraction form
   778,248/1,073,982.24 = 420,552/x
3. Step 3: Cross multiply
   778,248x = 1,073,982.24 × 420,552
4. Step 4: Simplify right side
   778,248x = 451,665,378,996.48
5. Step 5: Solve for x
   x = 451,665,378,996.48/778,248
6. Step 6: Final answer
   x = 580,361.76