Finding the Fourth Proportional to 2,688.71, 3,709.31 and 1,941.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.71 : 3,709.31 = 1,941.03 : x
2. Step 2: Convert to fraction form
   2,688.71/3,709.31 = 1,941.03/x
3. Step 3: Cross multiply
   2,688.71x = 3,709.31 × 1,941.03
4. Step 4: Simplify right side
   2,688.71x = 7,199,872.28
5. Step 5: Solve for x
   x = 7,199,872.28/2,688.71
6. Step 6: Final answer
   x = 2,677.82