Finding the Fourth Proportional to 1,965.42, 2,940.81 and 1,943.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,965.42 : 2,940.81 = 1,943.55 : x
2. Step 2: Convert to fraction form
   1,965.42/2,940.81 = 1,943.55/x
3. Step 3: Cross multiply
   1,965.42x = 2,940.81 × 1,943.55
4. Step 4: Simplify right side
   1,965.42x = 5,715,611.28
5. Step 5: Solve for x
   x = 5,715,611.28/1,965.42
6. Step 6: Final answer
   x = 2,908.09