Finding the Fourth Proportional to 2,402.47, 3,315.72 and 1,408.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.47 : 3,315.72 = 1,408.60 : x
2. Step 2: Convert to fraction form
   2,402.47/3,315.72 = 1,408.60/x
3. Step 3: Cross multiply
   2,402.47x = 3,315.72 × 1,408.60
4. Step 4: Simplify right side
   2,402.47x = 4,670,532.62
5. Step 5: Solve for x
   x = 4,670,532.62/2,402.47
6. Step 6: Final answer
   x = 1,944.05