Finding the Fourth Proportional to 1,965.55, 2,940.91 and 1,171.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,965.55 : 2,940.91 = 1,171.97 : x
2. Step 2: Convert to fraction form
   1,965.55/2,940.91 = 1,171.97/x
3. Step 3: Cross multiply
   1,965.55x = 2,940.91 × 1,171.97
4. Step 4: Simplify right side
   1,965.55x = 3,446,662.72
5. Step 5: Solve for x
   x = 3,446,662.72/1,965.55
6. Step 6: Final answer
   x = 1,753.54