Finding the Fourth Proportional to 2,085.97, 3,131.10 and 1,628.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.97 : 3,131.10 = 1,628.83 : x
2. Step 2: Convert to fraction form
   2,085.97/3,131.10 = 1,628.83/x
3. Step 3: Cross multiply
   2,085.97x = 3,131.10 × 1,628.83
4. Step 4: Simplify right side
   2,085.97x = 5,100,029.61
5. Step 5: Solve for x
   x = 5,100,029.61/2,085.97
6. Step 6: Final answer
   x = 2,444.92