Finding the Fourth Proportional to 3,638.69, 5,457.72 and 1,446.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,638.69 : 5,457.72 = 1,446.83 : x
2. Step 2: Convert to fraction form
   3,638.69/5,457.72 = 1,446.83/x
3. Step 3: Cross multiply
   3,638.69x = 5,457.72 × 1,446.83
4. Step 4: Simplify right side
   3,638.69x = 7,896,365.74
5. Step 5: Solve for x
   x = 7,896,365.74/3,638.69
6. Step 6: Final answer
   x = 2,170.12