Finding the Fourth Proportional to 2,408.72, 3,610.62 and 945.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.72 : 3,610.62 = 945.88 : x
2. Step 2: Convert to fraction form
   2,408.72/3,610.62 = 945.88/x
3. Step 3: Cross multiply
   2,408.72x = 3,610.62 × 945.88
4. Step 4: Simplify right side
   2,408.72x = 3,415,213.25
5. Step 5: Solve for x
   x = 3,415,213.25/2,408.72
6. Step 6: Final answer
   x = 1,417.85