Finding the Fourth Proportional to 2,615.30, 3,609.16 and 1,436.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.30 : 3,609.16 = 1,436.36 : x
2. Step 2: Convert to fraction form
   2,615.30/3,609.16 = 1,436.36/x
3. Step 3: Cross multiply
   2,615.30x = 3,609.16 × 1,436.36
4. Step 4: Simplify right side
   2,615.30x = 5,184,053.06
5. Step 5: Solve for x
   x = 5,184,053.06/2,615.30
6. Step 6: Final answer
   x = 1,982.20