Finding the Fourth Proportional to 1,095.94, 1,642.50 and 479.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.94 : 1,642.50 = 479.53 : x
2. Step 2: Convert to fraction form
   1,095.94/1,642.50 = 479.53/x
3. Step 3: Cross multiply
   1,095.94x = 1,642.50 × 479.53
4. Step 4: Simplify right side
   1,095.94x = 787,628.03
5. Step 5: Solve for x
   x = 787,628.03/1,095.94
6. Step 6: Final answer
   x = 718.68