Finding the Fourth Proportional to 2,282.31, 3,420.72 and 894.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.31 : 3,420.72 = 894.78 : x
2. Step 2: Convert to fraction form
   2,282.31/3,420.72 = 894.78/x
3. Step 3: Cross multiply
   2,282.31x = 3,420.72 × 894.78
4. Step 4: Simplify right side
   2,282.31x = 3,060,791.84
5. Step 5: Solve for x
   x = 3,060,791.84/2,282.31
6. Step 6: Final answer
   x = 1,341.09