Finding the Fourth Proportional to 1,053.41, 1,578.69 and 504.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.41 : 1,578.69 = 504.50 : x
2. Step 2: Convert to fraction form
   1,053.41/1,578.69 = 504.50/x
3. Step 3: Cross multiply
   1,053.41x = 1,578.69 × 504.50
4. Step 4: Simplify right side
   1,053.41x = 796,441.21
5. Step 5: Solve for x
   x = 796,441.21/1,053.41
6. Step 6: Final answer
   x = 756.06