Finding the Fourth Proportional to 1,095.73, 1,642.52 and 518.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.73 : 1,642.52 = 518.29 : x
2. Step 2: Convert to fraction form
   1,095.73/1,642.52 = 518.29/x
3. Step 3: Cross multiply
   1,095.73x = 1,642.52 × 518.29
4. Step 4: Simplify right side
   1,095.73x = 851,299.10
5. Step 5: Solve for x
   x = 851,299.10/1,095.73
6. Step 6: Final answer
   x = 776.92