Finding the Fourth Proportional to 2,406.42, 3,609.42 and 847.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.42 : 3,609.42 = 847.32 : x
2. Step 2: Convert to fraction form
   2,406.42/3,609.42 = 847.32/x
3. Step 3: Cross multiply
   2,406.42x = 3,609.42 × 847.32
4. Step 4: Simplify right side
   2,406.42x = 3,058,333.75
5. Step 5: Solve for x
   x = 3,058,333.75/2,406.42
6. Step 6: Final answer
   x = 1,270.91