Finding the Fourth Proportional to 1,064.35, 1,468.81 and 622.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.35 : 1,468.81 = 622.28 : x
2. Step 2: Convert to fraction form
   1,064.35/1,468.81 = 622.28/x
3. Step 3: Cross multiply
   1,064.35x = 1,468.81 × 622.28
4. Step 4: Simplify right side
   1,064.35x = 914,011.09
5. Step 5: Solve for x
   x = 914,011.09/1,064.35
6. Step 6: Final answer
   x = 858.75