Finding the Fourth Proportional to 3,665.09, 5,498.81 and 1,325.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.09 : 5,498.81 = 1,325.09 : x
2. Step 2: Convert to fraction form
   3,665.09/5,498.81 = 1,325.09/x
3. Step 3: Cross multiply
   3,665.09x = 5,498.81 × 1,325.09
4. Step 4: Simplify right side
   3,665.09x = 7,286,384.02
5. Step 5: Solve for x
   x = 7,286,384.02/3,665.09
6. Step 6: Final answer
   x = 1,988.05