Finding the Fourth Proportional to 1,718.71, 2,578.06 and 622.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,718.71 : 2,578.06 = 622.82 : x
2. Step 2: Convert to fraction form
   1,718.71/2,578.06 = 622.82/x
3. Step 3: Cross multiply
   1,718.71x = 2,578.06 × 622.82
4. Step 4: Simplify right side
   1,718.71x = 1,605,667.33
5. Step 5: Solve for x
   x = 1,605,667.33/1,718.71
6. Step 6: Final answer
   x = 934.23