Finding the Fourth Proportional to 2,127.30, 3,188.89 and 895.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.30 : 3,188.89 = 895.78 : x
2. Step 2: Convert to fraction form
   2,127.30/3,188.89 = 895.78/x
3. Step 3: Cross multiply
   2,127.30x = 3,188.89 × 895.78
4. Step 4: Simplify right side
   2,127.30x = 2,856,543.88
5. Step 5: Solve for x
   x = 2,856,543.88/2,127.30
6. Step 6: Final answer
   x = 1,342.80