Finding the Fourth Proportional to 1,150.15, 1,722.47 and 629.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.15 : 1,722.47 = 629.37 : x
2. Step 2: Convert to fraction form
   1,150.15/1,722.47 = 629.37/x
3. Step 3: Cross multiply
   1,150.15x = 1,722.47 × 629.37
4. Step 4: Simplify right side
   1,150.15x = 1,084,070.94
5. Step 5: Solve for x
   x = 1,084,070.94/1,150.15
6. Step 6: Final answer
   x = 942.55