Finding the Fourth Proportional to 1,064.00, 1,468.19 and 621.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.00 : 1,468.19 = 621.59 : x
2. Step 2: Convert to fraction form
   1,064.00/1,468.19 = 621.59/x
3. Step 3: Cross multiply
   1,064.00x = 1,468.19 × 621.59
4. Step 4: Simplify right side
   1,064.00x = 912,601.77
5. Step 5: Solve for x
   x = 912,601.77/1,064.00
6. Step 6: Final answer
   x = 857.71