Finding the Fourth Proportional to 1,064.08, 1,468.33 and 621.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.08 : 1,468.33 = 621.82 : x
2. Step 2: Convert to fraction form
   1,064.08/1,468.33 = 621.82/x
3. Step 3: Cross multiply
   1,064.08x = 1,468.33 × 621.82
4. Step 4: Simplify right side
   1,064.08x = 913,036.96
5. Step 5: Solve for x
   x = 913,036.96/1,064.08
6. Step 6: Final answer
   x = 858.05