Finding the Fourth Proportional to 3,019.43, 4,165.76 and 1,900.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,019.43 : 4,165.76 = 1,900.45 : x
2. Step 2: Convert to fraction form
   3,019.43/4,165.76 = 1,900.45/x
3. Step 3: Cross multiply
   3,019.43x = 4,165.76 × 1,900.45
4. Step 4: Simplify right side
   3,019.43x = 7,916,818.59
5. Step 5: Solve for x
   x = 7,916,818.59/3,019.43
6. Step 6: Final answer
   x = 2,621.96