Finding the Fourth Proportional to 2,453.72, 3,679.42 and 892.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.72 : 3,679.42 = 892.63 : x
2. Step 2: Convert to fraction form
   2,453.72/3,679.42 = 892.63/x
3. Step 3: Cross multiply
   2,453.72x = 3,679.42 × 892.63
4. Step 4: Simplify right side
   2,453.72x = 3,284,360.67
5. Step 5: Solve for x
   x = 3,284,360.67/2,453.72
6. Step 6: Final answer
   x = 1,338.52