Finding the Fourth Proportional to 1,322.88, 1,980.27 and 932.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.88 : 1,980.27 = 932.91 : x
2. Step 2: Convert to fraction form
   1,322.88/1,980.27 = 932.91/x
3. Step 3: Cross multiply
   1,322.88x = 1,980.27 × 932.91
4. Step 4: Simplify right side
   1,322.88x = 1,847,413.69
5. Step 5: Solve for x
   x = 1,847,413.69/1,322.88
6. Step 6: Final answer
   x = 1,396.51