Finding the Fourth Proportional to 2,454.58, 3,679.57 and 894.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.58 : 3,679.57 = 894.21 : x
2. Step 2: Convert to fraction form
   2,454.58/3,679.57 = 894.21/x
3. Step 3: Cross multiply
   2,454.58x = 3,679.57 × 894.21
4. Step 4: Simplify right side
   2,454.58x = 3,290,308.29
5. Step 5: Solve for x
   x = 3,290,308.29/2,454.58
6. Step 6: Final answer
   x = 1,340.48