Finding the Fourth Proportional to 1,067.31, 1,472.83 and 625.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.31 : 1,472.83 = 625.25 : x
2. Step 2: Convert to fraction form
   1,067.31/1,472.83 = 625.25/x
3. Step 3: Cross multiply
   1,067.31x = 1,472.83 × 625.25
4. Step 4: Simplify right side
   1,067.31x = 920,886.96
5. Step 5: Solve for x
   x = 920,886.96/1,067.31
6. Step 6: Final answer
   x = 862.81