Finding the Fourth Proportional to 778,625.43, 1,074,299.72 and 456,162.09

Step by Step Solution

1. Step 1: Write the proportion equation
   778,625.43 : 1,074,299.72 = 456,162.09 : x
2. Step 2: Convert to fraction form
   778,625.43/1,074,299.72 = 456,162.09/x
3. Step 3: Cross multiply
   778,625.43x = 1,074,299.72 × 456,162.09
4. Step 4: Simplify right side
   778,625.43x = 490,054,803,280.80
5. Step 5: Solve for x
   x = 490,054,803,280.80/778,625.43
6. Step 6: Final answer
   x = 629,384.53