Finding the Fourth Proportional to 3,085.83, 4,255.94 and 1,906.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085.83 : 4,255.94 = 1,906.07 : x
2. Step 2: Convert to fraction form
   3,085.83/4,255.94 = 1,906.07/x
3. Step 3: Cross multiply
   3,085.83x = 4,255.94 × 1,906.07
4. Step 4: Simplify right side
   3,085.83x = 8,112,103.04
5. Step 5: Solve for x
   x = 8,112,103.04/3,085.83
6. Step 6: Final answer
   x = 2,628.82