Finding the Fourth Proportional to 2,091.35, 3,140.82 and 2,042.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.35 : 3,140.82 = 2,042.15 : x
2. Step 2: Convert to fraction form
   2,091.35/3,140.82 = 2,042.15/x
3. Step 3: Cross multiply
   2,091.35x = 3,140.82 × 2,042.15
4. Step 4: Simplify right side
   2,091.35x = 6,414,009.86
5. Step 5: Solve for x
   x = 6,414,009.86/2,091.35
6. Step 6: Final answer
   x = 3,066.92