Finding the Fourth Proportional to 1,447.36, 2,173.69 and 1,325.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.36 : 2,173.69 = 1,325.37 : x
2. Step 2: Convert to fraction form
   1,447.36/2,173.69 = 1,325.37/x
3. Step 3: Cross multiply
   1,447.36x = 2,173.69 × 1,325.37
4. Step 4: Simplify right side
   1,447.36x = 2,880,926.02
5. Step 5: Solve for x
   x = 2,880,926.02/1,447.36
6. Step 6: Final answer
   x = 1,990.47