Finding the Fourth Proportional to 3,639.32, 5,461.42 and 1,448.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639.32 : 5,461.42 = 1,448.52 : x
2. Step 2: Convert to fraction form
   3,639.32/5,461.42 = 1,448.52/x
3. Step 3: Cross multiply
   3,639.32x = 5,461.42 × 1,448.52
4. Step 4: Simplify right side
   3,639.32x = 7,910,976.10
5. Step 5: Solve for x
   x = 7,910,976.10/3,639.32
6. Step 6: Final answer
   x = 2,173.75