Finding the Fourth Proportional to 1,067.00, 1,472.49 and 647.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.00 : 1,472.49 = 647.21 : x
2. Step 2: Convert to fraction form
   1,067.00/1,472.49 = 647.21/x
3. Step 3: Cross multiply
   1,067.00x = 1,472.49 × 647.21
4. Step 4: Simplify right side
   1,067.00x = 953,002.89
5. Step 5: Solve for x
   x = 953,002.89/1,067.00
6. Step 6: Final answer
   x = 893.17