Finding the Fourth Proportional to 3,019.42, 4,167.32 and 1,900.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,019.42 : 4,167.32 = 1,900.72 : x
2. Step 2: Convert to fraction form
   3,019.42/4,167.32 = 1,900.72/x
3. Step 3: Cross multiply
   3,019.42x = 4,167.32 × 1,900.72
4. Step 4: Simplify right side
   3,019.42x = 7,920,908.47
5. Step 5: Solve for x
   x = 7,920,908.47/3,019.42
6. Step 6: Final answer
   x = 2,623.32