Finding the Fourth Proportional to 1,150.20, 1,722.56 and 629.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.20 : 1,722.56 = 629.42 : x
2. Step 2: Convert to fraction form
   1,150.20/1,722.56 = 629.42/x
3. Step 3: Cross multiply
   1,150.20x = 1,722.56 × 629.42
4. Step 4: Simplify right side
   1,150.20x = 1,084,213.72
5. Step 5: Solve for x
   x = 1,084,213.72/1,150.20
6. Step 6: Final answer
   x = 942.63