Finding the Fourth Proportional to 2,013.82, 3,019.11 and 917.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.82 : 3,019.11 = 917.62 : x
2. Step 2: Convert to fraction form
   2,013.82/3,019.11 = 917.62/x
3. Step 3: Cross multiply
   2,013.82x = 3,019.11 × 917.62
4. Step 4: Simplify right side
   2,013.82x = 2,770,395.72
5. Step 5: Solve for x
   x = 2,770,395.72/2,013.82
6. Step 6: Final answer
   x = 1,375.69