Finding the Fourth Proportional to 2,824.55, 4,236.45 and 744.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,824.55 : 4,236.45 = 744.57 : x
2. Step 2: Convert to fraction form
   2,824.55/4,236.45 = 744.57/x
3. Step 3: Cross multiply
   2,824.55x = 4,236.45 × 744.57
4. Step 4: Simplify right side
   2,824.55x = 3,154,333.58
5. Step 5: Solve for x
   x = 3,154,333.58/2,824.55
6. Step 6: Final answer
   x = 1,116.76