Finding the Fourth Proportional to 2,123.69, 3,186.34 and 968.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.69 : 3,186.34 = 968.63 : x
2. Step 2: Convert to fraction form
   2,123.69/3,186.34 = 968.63/x
3. Step 3: Cross multiply
   2,123.69x = 3,186.34 × 968.63
4. Step 4: Simplify right side
   2,123.69x = 3,086,366.16
5. Step 5: Solve for x
   x = 3,086,366.16/2,123.69
6. Step 6: Final answer
   x = 1,453.31