Finding the Fourth Proportional to 1,965.56, 2,940.90 and 1,171.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,965.56 : 2,940.90 = 1,171.98 : x
2. Step 2: Convert to fraction form
   1,965.56/2,940.90 = 1,171.98/x
3. Step 3: Cross multiply
   1,965.56x = 2,940.90 × 1,171.98
4. Step 4: Simplify right side
   1,965.56x = 3,446,675.98
5. Step 5: Solve for x
   x = 3,446,675.98/1,965.56
6. Step 6: Final answer
   x = 1,753.54