Finding the Fourth Proportional to 1,064.10, 1,468.46 and 622.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.10 : 1,468.46 = 622.03 : x
2. Step 2: Convert to fraction form
   1,064.10/1,468.46 = 622.03/x
3. Step 3: Cross multiply
   1,064.10x = 1,468.46 × 622.03
4. Step 4: Simplify right side
   1,064.10x = 913,426.17
5. Step 5: Solve for x
   x = 913,426.17/1,064.10
6. Step 6: Final answer
   x = 858.40