Finding the Fourth Proportional to 3,709.89, 5,558.76 and 2,886.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,709.89 : 5,558.76 = 2,886.12 : x
2. Step 2: Convert to fraction form
   3,709.89/5,558.76 = 2,886.12/x
3. Step 3: Cross multiply
   3,709.89x = 5,558.76 × 2,886.12
4. Step 4: Simplify right side
   3,709.89x = 16,043,248.41
5. Step 5: Solve for x
   x = 16,043,248.41/3,709.89
6. Step 6: Final answer
   x = 4,324.45