Finding the Fourth Proportional to 1,447.30, 2,169.87 and 900.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.30 : 2,169.87 = 900.82 : x
2. Step 2: Convert to fraction form
   1,447.30/2,169.87 = 900.82/x
3. Step 3: Cross multiply
   1,447.30x = 2,169.87 × 900.82
4. Step 4: Simplify right side
   1,447.30x = 1,954,662.29
5. Step 5: Solve for x
   x = 1,954,662.29/1,447.30
6. Step 6: Final answer
   x = 1,350.56