Finding the Fourth Proportional to 1,064.34, 1,468.57 and 622.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.34 : 1,468.57 = 622.16 : x
2. Step 2: Convert to fraction form
   1,064.34/1,468.57 = 622.16/x
3. Step 3: Cross multiply
   1,064.34x = 1,468.57 × 622.16
4. Step 4: Simplify right side
   1,064.34x = 913,677.41
5. Step 5: Solve for x
   x = 913,677.41/1,064.34
6. Step 6: Final answer
   x = 858.45