Finding the Fourth Proportional to 2,402.65, 3,315.77 and 1,408.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.65 : 3,315.77 = 1,408.27 : x
2. Step 2: Convert to fraction form
   2,402.65/3,315.77 = 1,408.27/x
3. Step 3: Cross multiply
   2,402.65x = 3,315.77 × 1,408.27
4. Step 4: Simplify right side
   2,402.65x = 4,669,475.80
5. Step 5: Solve for x
   x = 4,669,475.80/2,402.65
6. Step 6: Final answer
   x = 1,943.47