Finding the Fourth Proportional to 1,327.27, 1,981.17 and 1,171.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,327.27 : 1,981.17 = 1,171.60 : x
2. Step 2: Convert to fraction form
   1,327.27/1,981.17 = 1,171.60/x
3. Step 3: Cross multiply
   1,327.27x = 1,981.17 × 1,171.60
4. Step 4: Simplify right side
   1,327.27x = 2,321,133.82
5. Step 5: Solve for x
   x = 2,321,133.82/1,327.27
6. Step 6: Final answer
   x = 1,748.81