Finding the Fourth Proportional to 2,453.52, 3,680.69 and 893.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.52 : 3,680.69 = 893.61 : x
2. Step 2: Convert to fraction form
   2,453.52/3,680.69 = 893.61/x
3. Step 3: Cross multiply
   2,453.52x = 3,680.69 × 893.61
4. Step 4: Simplify right side
   2,453.52x = 3,289,101.39
5. Step 5: Solve for x
   x = 3,289,101.39/2,453.52
6. Step 6: Final answer
   x = 1,340.56