Finding the Fourth Proportional to 2,472.86, 3,708.41 and 912.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.86 : 3,708.41 = 912.53 : x
2. Step 2: Convert to fraction form
   2,472.86/3,708.41 = 912.53/x
3. Step 3: Cross multiply
   2,472.86x = 3,708.41 × 912.53
4. Step 4: Simplify right side
   2,472.86x = 3,384,012.27
5. Step 5: Solve for x
   x = 3,384,012.27/2,472.86
6. Step 6: Final answer
   x = 1,368.46