Finding the Fourth Proportional to 2,123.56, 3,186.15 and 968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.56 : 3,186.15 = 968.50 : x
2. Step 2: Convert to fraction form
   2,123.56/3,186.15 = 968.50/x
3. Step 3: Cross multiply
   2,123.56x = 3,186.15 × 968.50
4. Step 4: Simplify right side
   2,123.56x = 3,085,786.28
5. Step 5: Solve for x
   x = 3,085,786.28/2,123.56
6. Step 6: Final answer
   x = 1,453.12