Finding the Fourth Proportional to 1,101.48, 1,520.04 and 629.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.48 : 1,520.04 = 629.37 : x
2. Step 2: Convert to fraction form
   1,101.48/1,520.04 = 629.37/x
3. Step 3: Cross multiply
   1,101.48x = 1,520.04 × 629.37
4. Step 4: Simplify right side
   1,101.48x = 956,667.57
5. Step 5: Solve for x
   x = 956,667.57/1,101.48
6. Step 6: Final answer
   x = 868.53