Finding the Fourth Proportional to 2,792.42, 4,188.52 and 712.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,792.42 : 4,188.52 = 712.48 : x
2. Step 2: Convert to fraction form
   2,792.42/4,188.52 = 712.48/x
3. Step 3: Cross multiply
   2,792.42x = 4,188.52 × 712.48
4. Step 4: Simplify right side
   2,792.42x = 2,984,236.73
5. Step 5: Solve for x
   x = 2,984,236.73/2,792.42
6. Step 6: Final answer
   x = 1,068.69