Finding the Fourth Proportional to 2,615.77, 3,609.69 and 1,436.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.77 : 3,609.69 = 1,436.84 : x
2. Step 2: Convert to fraction form
   2,615.77/3,609.69 = 1,436.84/x
3. Step 3: Cross multiply
   2,615.77x = 3,609.69 × 1,436.84
4. Step 4: Simplify right side
   2,615.77x = 5,186,541.12
5. Step 5: Solve for x
   x = 5,186,541.12/2,615.77
6. Step 6: Final answer
   x = 1,982.80