Finding the Fourth Proportional to 1,064.30, 1,468.73 and 622.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.30 : 1,468.73 = 622.12 : x
2. Step 2: Convert to fraction form
   1,064.30/1,468.73 = 622.12/x
3. Step 3: Cross multiply
   1,064.30x = 1,468.73 × 622.12
4. Step 4: Simplify right side
   1,064.30x = 913,718.96
5. Step 5: Solve for x
   x = 913,718.96/1,064.30
6. Step 6: Final answer
   x = 858.52