Finding the Fourth Proportional to 2,774.55, 3,828.89 and 1,515.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.55 : 3,828.89 = 1,515.62 : x
2. Step 2: Convert to fraction form
   2,774.55/3,828.89 = 1,515.62/x
3. Step 3: Cross multiply
   2,774.55x = 3,828.89 × 1,515.62
4. Step 4: Simplify right side
   2,774.55x = 5,803,115.54
5. Step 5: Solve for x
   x = 5,803,115.54/2,774.55
6. Step 6: Final answer
   x = 2,091.55