Finding the Fourth Proportional to 2,008.50, 3,012.76 and 622.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,008.50 : 3,012.76 = 622.15 : x
2. Step 2: Convert to fraction form
   2,008.50/3,012.76 = 622.15/x
3. Step 3: Cross multiply
   2,008.50x = 3,012.76 × 622.15
4. Step 4: Simplify right side
   2,008.50x = 1,874,381.88
5. Step 5: Solve for x
   x = 1,874,381.88/2,008.50
6. Step 6: Final answer
   x = 933.23