Finding the Fourth Proportional to 1,047.57, 1,446.66 and 897.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.57 : 1,446.66 = 897.33 : x
2. Step 2: Convert to fraction form
   1,047.57/1,446.66 = 897.33/x
3. Step 3: Cross multiply
   1,047.57x = 1,446.66 × 897.33
4. Step 4: Simplify right side
   1,047.57x = 1,298,131.42
5. Step 5: Solve for x
   x = 1,298,131.42/1,047.57
6. Step 6: Final answer
   x = 1,239.18