Finding the Fourth Proportional to 1,101.32, 1,519.69 and 629.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.32 : 1,519.69 = 629.17 : x
2. Step 2: Convert to fraction form
   1,101.32/1,519.69 = 629.17/x
3. Step 3: Cross multiply
   1,101.32x = 1,519.69 × 629.17
4. Step 4: Simplify right side
   1,101.32x = 956,137.40
5. Step 5: Solve for x
   x = 956,137.40/1,101.32
6. Step 6: Final answer
   x = 868.17