Finding the Fourth Proportional to 2,127.15, 3,191.42 and 894.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.15 : 3,191.42 = 894.90 : x
2. Step 2: Convert to fraction form
   2,127.15/3,191.42 = 894.90/x
3. Step 3: Cross multiply
   2,127.15x = 3,191.42 × 894.90
4. Step 4: Simplify right side
   2,127.15x = 2,856,001.76
5. Step 5: Solve for x
   x = 2,856,001.76/2,127.15
6. Step 6: Final answer
   x = 1,342.64