Finding the Fourth Proportional to 1,052.69, 1,578.06 and 504.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052.69 : 1,578.06 = 504.09 : x
2. Step 2: Convert to fraction form
   1,052.69/1,578.06 = 504.09/x
3. Step 3: Cross multiply
   1,052.69x = 1,578.06 × 504.09
4. Step 4: Simplify right side
   1,052.69x = 795,484.27
5. Step 5: Solve for x
   x = 795,484.27/1,052.69
6. Step 6: Final answer
   x = 755.67