Finding the Fourth Proportional to 2,123.15, 3,185.53 and 968.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.15 : 3,185.53 = 968.63 : x
2. Step 2: Convert to fraction form
   2,123.15/3,185.53 = 968.63/x
3. Step 3: Cross multiply
   2,123.15x = 3,185.53 × 968.63
4. Step 4: Simplify right side
   2,123.15x = 3,085,581.57
5. Step 5: Solve for x
   x = 3,085,581.57/2,123.15
6. Step 6: Final answer
   x = 1,453.31