Finding the Fourth Proportional to 2,083.20, 3,116.16 and 1,893.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.20 : 3,116.16 = 1,893.12 : x
2. Step 2: Convert to fraction form
   2,083.20/3,116.16 = 1,893.12/x
3. Step 3: Cross multiply
   2,083.20x = 3,116.16 × 1,893.12
4. Step 4: Simplify right side
   2,083.20x = 5,899,264.82
5. Step 5: Solve for x
   x = 5,899,264.82/2,083.20
6. Step 6: Final answer
   x = 2,831.83