Finding the Fourth Proportional to 2,402.89, 3,316.82 and 1,408.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.89 : 3,316.82 = 1,408.49 : x
2. Step 2: Convert to fraction form
   2,402.89/3,316.82 = 1,408.49/x
3. Step 3: Cross multiply
   2,402.89x = 3,316.82 × 1,408.49
4. Step 4: Simplify right side
   2,402.89x = 4,671,707.80
5. Step 5: Solve for x
   x = 4,671,707.80/2,402.89
6. Step 6: Final answer
   x = 1,944.20