Finding the Fourth Proportional to 2,109.82, 3,150.71 and 2,086.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.82 : 3,150.71 = 2,086.92 : x
2. Step 2: Convert to fraction form
   2,109.82/3,150.71 = 2,086.92/x
3. Step 3: Cross multiply
   2,109.82x = 3,150.71 × 2,086.92
4. Step 4: Simplify right side
   2,109.82x = 6,575,279.71
5. Step 5: Solve for x
   x = 6,575,279.71/2,109.82
6. Step 6: Final answer
   x = 3,116.51