Finding the Fourth Proportional to 2,814.31, 4,215.12 and 1,354.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.31 : 4,215.12 = 1,354.56 : x
2. Step 2: Convert to fraction form
   2,814.31/4,215.12 = 1,354.56/x
3. Step 3: Cross multiply
   2,814.31x = 4,215.12 × 1,354.56
4. Step 4: Simplify right side
   2,814.31x = 5,709,632.95
5. Step 5: Solve for x
   x = 5,709,632.95/2,814.31
6. Step 6: Final answer
   x = 2,028.79