Finding the Fourth Proportional to 2,615.81, 3,609.86 and 1,436.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.81 : 3,609.86 = 1,436.99 : x
2. Step 2: Convert to fraction form
   2,615.81/3,609.86 = 1,436.99/x
3. Step 3: Cross multiply
   2,615.81x = 3,609.86 × 1,436.99
4. Step 4: Simplify right side
   2,615.81x = 5,187,307.49
5. Step 5: Solve for x
   x = 5,187,307.49/2,615.81
6. Step 6: Final answer
   x = 1,983.06