Finding the Fourth Proportional to 2,109.90, 3,149.79 and 1,833.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.90 : 3,149.79 = 1,833.18 : x
2. Step 2: Convert to fraction form
   2,109.90/3,149.79 = 1,833.18/x
3. Step 3: Cross multiply
   2,109.90x = 3,149.79 × 1,833.18
4. Step 4: Simplify right side
   2,109.90x = 5,774,131.06
5. Step 5: Solve for x
   x = 5,774,131.06/2,109.90
6. Step 6: Final answer
   x = 2,736.69