Finding the Fourth Proportional to 2,128.43, 3,190.28 and 895.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.43 : 3,190.28 = 895.47 : x
2. Step 2: Convert to fraction form
   2,128.43/3,190.28 = 895.47/x
3. Step 3: Cross multiply
   2,128.43x = 3,190.28 × 895.47
4. Step 4: Simplify right side
   2,128.43x = 2,856,795.55
5. Step 5: Solve for x
   x = 2,856,795.55/2,128.43
6. Step 6: Final answer
   x = 1,342.21