Finding the Fourth Proportional to 900.72, 1,351.28 and 697.82

Step by Step Solution

1. Step 1: Write the proportion equation
   900.72 : 1,351.28 = 697.82 : x
2. Step 2: Convert to fraction form
   900.72/1,351.28 = 697.82/x
3. Step 3: Cross multiply
   900.72x = 1,351.28 × 697.82
4. Step 4: Simplify right side
   900.72x = 942,945.20
5. Step 5: Solve for x
   x = 942,945.20/900.72
6. Step 6: Final answer
   x = 1,046.88