Finding the Fourth Proportional to 1,448.82, 2,173.77 and 872.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.82 : 2,173.77 = 872.10 : x
2. Step 2: Convert to fraction form
   1,448.82/2,173.77 = 872.10/x
3. Step 3: Cross multiply
   1,448.82x = 2,173.77 × 872.10
4. Step 4: Simplify right side
   1,448.82x = 1,895,744.82
5. Step 5: Solve for x
   x = 1,895,744.82/1,448.82
6. Step 6: Final answer
   x = 1,308.48