Finding the Fourth Proportional to 3,019.40, 4,168.55 and 1,901.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,019.40 : 4,168.55 = 1,901.30 : x
2. Step 2: Convert to fraction form
   3,019.40/4,168.55 = 1,901.30/x
3. Step 3: Cross multiply
   3,019.40x = 4,168.55 × 1,901.30
4. Step 4: Simplify right side
   3,019.40x = 7,925,648.03
5. Step 5: Solve for x
   x = 7,925,648.03/3,019.40
6. Step 6: Final answer
   x = 2,624.91