Finding the Fourth Proportional to 1,965.68, 2,712.56 and 1,081.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,965.68 : 2,712.56 = 1,081.52 : x
2. Step 2: Convert to fraction form
   1,965.68/2,712.56 = 1,081.52/x
3. Step 3: Cross multiply
   1,965.68x = 2,712.56 × 1,081.52
4. Step 4: Simplify right side
   1,965.68x = 2,933,687.89
5. Step 5: Solve for x
   x = 2,933,687.89/1,965.68
6. Step 6: Final answer
   x = 1,492.45