Finding the Fourth Proportional to 778,019.46, 1,073,752.25 and 451,404.38

Step by Step Solution

1. Step 1: Write the proportion equation
   778,019.46 : 1,073,752.25 = 451,404.38 : x
2. Step 2: Convert to fraction form
   778,019.46/1,073,752.25 = 451,404.38/x
3. Step 3: Cross multiply
   778,019.46x = 1,073,752.25 × 451,404.38
4. Step 4: Simplify right side
   778,019.46x = 484,696,461,059.07
5. Step 5: Solve for x
   x = 484,696,461,059.07/778,019.46
6. Step 6: Final answer
   x = 622,987.58