Finding the Fourth Proportional to 2,405.10, 3,608.51 and 945.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.10 : 3,608.51 = 945.30 : x
2. Step 2: Convert to fraction form
   2,405.10/3,608.51 = 945.30/x
3. Step 3: Cross multiply
   2,405.10x = 3,608.51 × 945.30
4. Step 4: Simplify right side
   2,405.10x = 3,411,119.78
5. Step 5: Solve for x
   x = 3,411,119.78/2,405.10
6. Step 6: Final answer
   x = 1,418.29