Finding the Fourth Proportional to 3,012.28, 4,517.70 and 1,162.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,012.28 : 4,517.70 = 1,162.72 : x
2. Step 2: Convert to fraction form
   3,012.28/4,517.70 = 1,162.72/x
3. Step 3: Cross multiply
   3,012.28x = 4,517.70 × 1,162.72
4. Step 4: Simplify right side
   3,012.28x = 5,252,820.14
5. Step 5: Solve for x
   x = 5,252,820.14/3,012.28
6. Step 6: Final answer
   x = 1,743.80