Finding the Fourth Proportional to 2,528.15, 3,792.42 and 968.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.15 : 3,792.42 = 968.90 : x
2. Step 2: Convert to fraction form
   2,528.15/3,792.42 = 968.90/x
3. Step 3: Cross multiply
   2,528.15x = 3,792.42 × 968.90
4. Step 4: Simplify right side
   2,528.15x = 3,674,456.78
5. Step 5: Solve for x
   x = 3,674,456.78/2,528.15
6. Step 6: Final answer
   x = 1,453.42