Finding the Fourth Proportional to 2,528.56, 3,792.71 and 969.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.56 : 3,792.71 = 969.31 : x
2. Step 2: Convert to fraction form
   2,528.56/3,792.71 = 969.31/x
3. Step 3: Cross multiply
   2,528.56x = 3,792.71 × 969.31
4. Step 4: Simplify right side
   2,528.56x = 3,676,304.67
5. Step 5: Solve for x
   x = 3,676,304.67/2,528.56
6. Step 6: Final answer
   x = 1,453.91