Finding the Fourth Proportional to 2,221.86, 3,063.88 and 1,908.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.86 : 3,063.88 = 1,908.17 : x
2. Step 2: Convert to fraction form
   2,221.86/3,063.88 = 1,908.17/x
3. Step 3: Cross multiply
   2,221.86x = 3,063.88 × 1,908.17
4. Step 4: Simplify right side
   2,221.86x = 5,846,383.10
5. Step 5: Solve for x
   x = 5,846,383.10/2,221.86
6. Step 6: Final answer
   x = 2,631.30