Finding the Fourth Proportional to 3,640.72, 5,462.28 and 1,448.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.72 : 5,462.28 = 1,448.86 : x
2. Step 2: Convert to fraction form
   3,640.72/5,462.28 = 1,448.86/x
3. Step 3: Cross multiply
   3,640.72x = 5,462.28 × 1,448.86
4. Step 4: Simplify right side
   3,640.72x = 7,914,079.00
5. Step 5: Solve for x
   x = 7,914,079.00/3,640.72
6. Step 6: Final answer
   x = 2,173.77