Finding the Fourth Proportional to 3,665.48, 5,059.87 and 2,173.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.48 : 5,059.87 = 2,173.52 : x
2. Step 2: Convert to fraction form
   3,665.48/5,059.87 = 2,173.52/x
3. Step 3: Cross multiply
   3,665.48x = 5,059.87 × 2,173.52
4. Step 4: Simplify right side
   3,665.48x = 10,997,735.86
5. Step 5: Solve for x
   x = 10,997,735.86/3,665.48
6. Step 6: Final answer
   x = 3,000.36