Finding the Fourth Proportional to 1,282.91, 1,919.16 and 1,111.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.91 : 1,919.16 = 1,111.46 : x
2. Step 2: Convert to fraction form
   1,282.91/1,919.16 = 1,111.46/x
3. Step 3: Cross multiply
   1,282.91x = 1,919.16 × 1,111.46
4. Step 4: Simplify right side
   1,282.91x = 2,133,059.98
5. Step 5: Solve for x
   x = 2,133,059.98/1,282.91
6. Step 6: Final answer
   x = 1,662.68