Finding the Fourth Proportional to 1,131.48, 1,560.96 and 659.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.48 : 1,560.96 = 659.34 : x
2. Step 2: Convert to fraction form
   1,131.48/1,560.96 = 659.34/x
3. Step 3: Cross multiply
   1,131.48x = 1,560.96 × 659.34
4. Step 4: Simplify right side
   1,131.48x = 1,029,203.37
5. Step 5: Solve for x
   x = 1,029,203.37/1,131.48
6. Step 6: Final answer
   x = 909.61