Finding the Fourth Proportional to 1,046.35, 1,440.69 and 888.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.35 : 1,440.69 = 888.67 : x
2. Step 2: Convert to fraction form
   1,046.35/1,440.69 = 888.67/x
3. Step 3: Cross multiply
   1,046.35x = 1,440.69 × 888.67
4. Step 4: Simplify right side
   1,046.35x = 1,280,296.45
5. Step 5: Solve for x
   x = 1,280,296.45/1,046.35
6. Step 6: Final answer
   x = 1,223.58