Finding the Fourth Proportional to 2,452.47, 3,679.05 and 892.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.47 : 3,679.05 = 892.31 : x
2. Step 2: Convert to fraction form
   2,452.47/3,679.05 = 892.31/x
3. Step 3: Cross multiply
   2,452.47x = 3,679.05 × 892.31
4. Step 4: Simplify right side
   2,452.47x = 3,282,834.71
5. Step 5: Solve for x
   x = 3,282,834.71/2,452.47
6. Step 6: Final answer
   x = 1,338.58