Finding the Fourth Proportional to 1,061.82, 1,588.32 and 960.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.82 : 1,588.32 = 960.57 : x
2. Step 2: Convert to fraction form
   1,061.82/1,588.32 = 960.57/x
3. Step 3: Cross multiply
   1,061.82x = 1,588.32 × 960.57
4. Step 4: Simplify right side
   1,061.82x = 1,525,692.54
5. Step 5: Solve for x
   x = 1,525,692.54/1,061.82
6. Step 6: Final answer
   x = 1,436.87