Finding the Fourth Proportional to 2,012.18, 3,019.08 and 714.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.18 : 3,019.08 = 714.56 : x
2. Step 2: Convert to fraction form
   2,012.18/3,019.08 = 714.56/x
3. Step 3: Cross multiply
   2,012.18x = 3,019.08 × 714.56
4. Step 4: Simplify right side
   2,012.18x = 2,157,313.80
5. Step 5: Solve for x
   x = 2,157,313.80/2,012.18
6. Step 6: Final answer
   x = 1,072.13