Finding the Fourth Proportional to 1,249.82, 1,865.23 and 1,111.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249.82 : 1,865.23 = 1,111.43 : x
2. Step 2: Convert to fraction form
   1,249.82/1,865.23 = 1,111.43/x
3. Step 3: Cross multiply
   1,249.82x = 1,865.23 × 1,111.43
4. Step 4: Simplify right side
   1,249.82x = 2,073,074.46
5. Step 5: Solve for x
   x = 2,073,074.46/1,249.82
6. Step 6: Final answer
   x = 1,658.70