Finding the Fourth Proportional to 1,049.69, 1,447.50 and 900.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.69 : 1,447.50 = 900.82 : x
2. Step 2: Convert to fraction form
   1,049.69/1,447.50 = 900.82/x
3. Step 3: Cross multiply
   1,049.69x = 1,447.50 × 900.82
4. Step 4: Simplify right side
   1,049.69x = 1,303,942.14
5. Step 5: Solve for x
   x = 1,303,942.14/1,049.69
6. Step 6: Final answer
   x = 1,242.21