Finding the Fourth Proportional to 2,978.43, 4,460.33 and 2,455.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.43 : 4,460.33 = 2,455.23 : x
2. Step 2: Convert to fraction form
   2,978.43/4,460.33 = 2,455.23/x
3. Step 3: Cross multiply
   2,978.43x = 4,460.33 × 2,455.23
4. Step 4: Simplify right side
   2,978.43x = 10,951,123.75
5. Step 5: Solve for x
   x = 10,951,123.75/2,978.43
6. Step 6: Final answer
   x = 3,676.81