Finding the Fourth Proportional to 3,877.78, 5,788.54 and 3,588.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,877.78 : 5,788.54 = 3,588.68 : x
2. Step 2: Convert to fraction form
   3,877.78/5,788.54 = 3,588.68/x
3. Step 3: Cross multiply
   3,877.78x = 5,788.54 × 3,588.68
4. Step 4: Simplify right side
   3,877.78x = 20,773,217.73
5. Step 5: Solve for x
   x = 20,773,217.73/3,877.78
6. Step 6: Final answer
   x = 5,356.99