Finding the Fourth Proportional to 2,835.06, 3,910.56 and 2,116.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,835.06 : 3,910.56 = 2,116.68 : x
2. Step 2: Convert to fraction form
   2,835.06/3,910.56 = 2,116.68/x
3. Step 3: Cross multiply
   2,835.06x = 3,910.56 × 2,116.68
4. Step 4: Simplify right side
   2,835.06x = 8,277,404.14
5. Step 5: Solve for x
   x = 8,277,404.14/2,835.06
6. Step 6: Final answer
   x = 2,919.66