Finding the Fourth Proportional to 2,012.49, 3,019.19 and 713.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.49 : 3,019.19 = 713.96 : x
2. Step 2: Convert to fraction form
   2,012.49/3,019.19 = 713.96/x
3. Step 3: Cross multiply
   2,012.49x = 3,019.19 × 713.96
4. Step 4: Simplify right side
   2,012.49x = 2,155,580.89
5. Step 5: Solve for x
   x = 2,155,580.89/2,012.49
6. Step 6: Final answer
   x = 1,071.10