Finding the Fourth Proportional to 1,274.82, 1,911.12 and 1,081.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274.82 : 1,911.12 = 1,081.08 : x
2. Step 2: Convert to fraction form
   1,274.82/1,911.12 = 1,081.08/x
3. Step 3: Cross multiply
   1,274.82x = 1,911.12 × 1,081.08
4. Step 4: Simplify right side
   1,274.82x = 2,066,073.61
5. Step 5: Solve for x
   x = 2,066,073.61/1,274.82
6. Step 6: Final answer
   x = 1,620.68