Finding the Fourth Proportional to 1,965.47, 2,712.35 and 1,081.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,965.47 : 2,712.35 = 1,081.34 : x
2. Step 2: Convert to fraction form
   1,965.47/2,712.35 = 1,081.34/x
3. Step 3: Cross multiply
   1,965.47x = 2,712.35 × 1,081.34
4. Step 4: Simplify right side
   1,965.47x = 2,932,972.55
5. Step 5: Solve for x
   x = 2,932,972.55/1,965.47
6. Step 6: Final answer
   x = 1,492.25