Finding the Fourth Proportional to 1,143.33, 1,715.52 and 622.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143.33 : 1,715.52 = 622.55 : x
2. Step 2: Convert to fraction form
   1,143.33/1,715.52 = 622.55/x
3. Step 3: Cross multiply
   1,143.33x = 1,715.52 × 622.55
4. Step 4: Simplify right side
   1,143.33x = 1,067,996.98
5. Step 5: Solve for x
   x = 1,067,996.98/1,143.33
6. Step 6: Final answer
   x = 934.11