Finding the Fourth Proportional to 2,114.76, 3,186.03 and 1,605

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.76 : 3,186.03 = 1,605 : x
2. Step 2: Convert to fraction form
   2,114.76/3,186.03 = 1,605/x
3. Step 3: Cross multiply
   2,114.76x = 3,186.03 × 1,605
4. Step 4: Simplify right side
   2,114.76x = 5,113,578.15
5. Step 5: Solve for x
   x = 5,113,578.15/2,114.76
6. Step 6: Final answer
   x = 2,418.04