Finding the Fourth Proportional to 2,083.16, 2,874.72 and 1,138.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.16 : 2,874.72 = 1,138.94 : x
2. Step 2: Convert to fraction form
   2,083.16/2,874.72 = 1,138.94/x
3. Step 3: Cross multiply
   2,083.16x = 2,874.72 × 1,138.94
4. Step 4: Simplify right side
   2,083.16x = 3,274,119.22
5. Step 5: Solve for x
   x = 3,274,119.22/2,083.16
6. Step 6: Final answer
   x = 1,571.71