Finding the Fourth Proportional to 1,064.16, 1,468.56 and 622.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.16 : 1,468.56 = 622.38 : x
2. Step 2: Convert to fraction form
   1,064.16/1,468.56 = 622.38/x
3. Step 3: Cross multiply
   1,064.16x = 1,468.56 × 622.38
4. Step 4: Simplify right side
   1,064.16x = 914,002.37
5. Step 5: Solve for x
   x = 914,002.37/1,064.16
6. Step 6: Final answer
   x = 858.90