Finding the Fourth Proportional to 2,128.42, 3,193.86 and 895.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.42 : 3,193.86 = 895.72 : x
2. Step 2: Convert to fraction form
   2,128.42/3,193.86 = 895.72/x
3. Step 3: Cross multiply
   2,128.42x = 3,193.86 × 895.72
4. Step 4: Simplify right side
   2,128.42x = 2,860,804.28
5. Step 5: Solve for x
   x = 2,860,804.28/2,128.42
6. Step 6: Final answer
   x = 1,344.10