Finding the Fourth Proportional to 770,061.69, 1,062,258.50 and 447,736.16

Step by Step Solution

1. Step 1: Write the proportion equation
   770,061.69 : 1,062,258.50 = 447,736.16 : x
2. Step 2: Convert to fraction form
   770,061.69/1,062,258.50 = 447,736.16/x
3. Step 3: Cross multiply
   770,061.69x = 1,062,258.50 × 447,736.16
4. Step 4: Simplify right side
   770,061.69x = 475,611,534,167.39
5. Step 5: Solve for x
   x = 475,611,534,167.39/770,061.69
6. Step 6: Final answer
   x = 617,627.83