Finding the Fourth Proportional to 2,773.38, 3,828.78 and 1,877.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.38 : 3,828.78 = 1,877.76 : x
2. Step 2: Convert to fraction form
   2,773.38/3,828.78 = 1,877.76/x
3. Step 3: Cross multiply
   2,773.38x = 3,828.78 × 1,877.76
4. Step 4: Simplify right side
   2,773.38x = 7,189,529.93
5. Step 5: Solve for x
   x = 7,189,529.93/2,773.38
6. Step 6: Final answer
   x = 2,592.33