Finding the Fourth Proportional to 3,012.39, 4,515.39 and 1,162.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,012.39 : 4,515.39 = 1,162.71 : x
2. Step 2: Convert to fraction form
   3,012.39/4,515.39 = 1,162.71/x
3. Step 3: Cross multiply
   3,012.39x = 4,515.39 × 1,162.71
4. Step 4: Simplify right side
   3,012.39x = 5,250,089.11
5. Step 5: Solve for x
   x = 5,250,089.11/3,012.39
6. Step 6: Final answer
   x = 1,742.83