Finding the Fourth Proportional to 2,764.55, 3,815.15 and 1,569.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.55 : 3,815.15 = 1,569.74 : x
2. Step 2: Convert to fraction form
   2,764.55/3,815.15 = 1,569.74/x
3. Step 3: Cross multiply
   2,764.55x = 3,815.15 × 1,569.74
4. Step 4: Simplify right side
   2,764.55x = 5,988,766.64
5. Step 5: Solve for x
   x = 5,988,766.64/2,764.55
6. Step 6: Final answer
   x = 2,166.28