Finding the Fourth Proportional to 4,711.72, 7,062.42 and 1,899.40

Step by Step Solution

1. Step 1: Write the proportion equation
   4,711.72 : 7,062.42 = 1,899.40 : x
2. Step 2: Convert to fraction form
   4,711.72/7,062.42 = 1,899.40/x
3. Step 3: Cross multiply
   4,711.72x = 7,062.42 × 1,899.40
4. Step 4: Simplify right side
   4,711.72x = 13,414,360.55
5. Step 5: Solve for x
   x = 13,414,360.55/4,711.72
6. Step 6: Final answer
   x = 2,847.02