Finding the Fourth Proportional to 2,103.38, 3,154.34 and 622.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.38 : 3,154.34 = 622.16 : x
2. Step 2: Convert to fraction form
   2,103.38/3,154.34 = 622.16/x
3. Step 3: Cross multiply
   2,103.38x = 3,154.34 × 622.16
4. Step 4: Simplify right side
   2,103.38x = 1,962,504.17
5. Step 5: Solve for x
   x = 1,962,504.17/2,103.38
6. Step 6: Final answer
   x = 933.02