Finding the Fourth Proportional to 1,333.32, 2,000.89 and 717.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.32 : 2,000.89 = 717.21 : x
2. Step 2: Convert to fraction form
   1,333.32/2,000.89 = 717.21/x
3. Step 3: Cross multiply
   1,333.32x = 2,000.89 × 717.21
4. Step 4: Simplify right side
   1,333.32x = 1,435,054.73
5. Step 5: Solve for x
   x = 1,435,054.73/1,333.32
6. Step 6: Final answer
   x = 1,076.31