Finding the Fourth Proportional to 2,106.82, 2,908.32 and 1,321.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.82 : 2,908.32 = 1,321.32 : x
2. Step 2: Convert to fraction form
   2,106.82/2,908.32 = 1,321.32/x
3. Step 3: Cross multiply
   2,106.82x = 2,908.32 × 1,321.32
4. Step 4: Simplify right side
   2,106.82x = 3,842,821.38
5. Step 5: Solve for x
   x = 3,842,821.38/2,106.82
6. Step 6: Final answer
   x = 1,823.99