Finding the Fourth Proportional to 2,764.56, 3,813.17 and 1,878.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.56 : 3,813.17 = 1,878.83 : x
2. Step 2: Convert to fraction form
   2,764.56/3,813.17 = 1,878.83/x
3. Step 3: Cross multiply
   2,764.56x = 3,813.17 × 1,878.83
4. Step 4: Simplify right side
   2,764.56x = 7,164,269.73
5. Step 5: Solve for x
   x = 7,164,269.73/2,764.56
6. Step 6: Final answer
   x = 2,591.47