Finding the Fourth Proportional to 1,051.98, 1,578.37 and 504.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.98 : 1,578.37 = 504.62 : x
2. Step 2: Convert to fraction form
   1,051.98/1,578.37 = 504.62/x
3. Step 3: Cross multiply
   1,051.98x = 1,578.37 × 504.62
4. Step 4: Simplify right side
   1,051.98x = 796,477.07
5. Step 5: Solve for x
   x = 796,477.07/1,051.98
6. Step 6: Final answer
   x = 757.12