Finding the Fourth Proportional to 1,032.79, 1,424.89 and 659.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,032.79 : 1,424.89 = 659.98 : x
2. Step 2: Convert to fraction form
   1,032.79/1,424.89 = 659.98/x
3. Step 3: Cross multiply
   1,032.79x = 1,424.89 × 659.98
4. Step 4: Simplify right side
   1,032.79x = 940,398.90
5. Step 5: Solve for x
   x = 940,398.90/1,032.79
6. Step 6: Final answer
   x = 910.54