Finding the Fourth Proportional to 1,067.32, 1,472.50 and 647.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.32 : 1,472.50 = 647.52 : x
2. Step 2: Convert to fraction form
   1,067.32/1,472.50 = 647.52/x
3. Step 3: Cross multiply
   1,067.32x = 1,472.50 × 647.52
4. Step 4: Simplify right side
   1,067.32x = 953,471.58
5. Step 5: Solve for x
   x = 953,471.58/1,067.32
6. Step 6: Final answer
   x = 893.33