Finding the Fourth Proportional to 766,515, 1,057,556.55 and 444,162.81

Step by Step Solution

1. Step 1: Write the proportion equation
   766,515 : 1,057,556.55 = 444,162.81 : x
2. Step 2: Convert to fraction form
   766,515/1,057,556.55 = 444,162.81/x
3. Step 3: Cross multiply
   766,515x = 1,057,556.55 × 444,162.81
4. Step 4: Simplify right side
   766,515x = 469,727,288,981.91
5. Step 5: Solve for x
   x = 469,727,288,981.91/766,515
6. Step 6: Final answer
   x = 612,809.00