Finding the Fourth Proportional to 2,774.29, 3,828.46 and 1,515.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.29 : 3,828.46 = 1,515.31 : x
2. Step 2: Convert to fraction form
   2,774.29/3,828.46 = 1,515.31/x
3. Step 3: Cross multiply
   2,774.29x = 3,828.46 × 1,515.31
4. Step 4: Simplify right side
   2,774.29x = 5,801,303.72
5. Step 5: Solve for x
   x = 5,801,303.72/2,774.29
6. Step 6: Final answer
   x = 2,091.09