Finding the Fourth Proportional to 2,674.62, 4,012.47 and 1,215.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,674.62 : 4,012.47 = 1,215.27 : x
2. Step 2: Convert to fraction form
   2,674.62/4,012.47 = 1,215.27/x
3. Step 3: Cross multiply
   2,674.62x = 4,012.47 × 1,215.27
4. Step 4: Simplify right side
   2,674.62x = 4,876,234.42
5. Step 5: Solve for x
   x = 4,876,234.42/2,674.62
6. Step 6: Final answer
   x = 1,823.15