Finding the Fourth Proportional to 2,105.38, 3,157.34 and 624.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.38 : 3,157.34 = 624.16 : x
2. Step 2: Convert to fraction form
   2,105.38/3,157.34 = 624.16/x
3. Step 3: Cross multiply
   2,105.38x = 3,157.34 × 624.16
4. Step 4: Simplify right side
   2,105.38x = 1,970,685.33
5. Step 5: Solve for x
   x = 1,970,685.33/2,105.38
6. Step 6: Final answer
   x = 936.02