Finding the Fourth Proportional to 2,690.82, 3,711.56 and 1,943.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,690.82 : 3,711.56 = 1,943.55 : x
2. Step 2: Convert to fraction form
   2,690.82/3,711.56 = 1,943.55/x
3. Step 3: Cross multiply
   2,690.82x = 3,711.56 × 1,943.55
4. Step 4: Simplify right side
   2,690.82x = 7,213,592.72
5. Step 5: Solve for x
   x = 7,213,592.72/2,690.82
6. Step 6: Final answer
   x = 2,680.82