Finding the Fourth Proportional to 1,141.43, 1,575.37 and 662.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.43 : 1,575.37 = 662.81 : x
2. Step 2: Convert to fraction form
   1,141.43/1,575.37 = 662.81/x
3. Step 3: Cross multiply
   1,141.43x = 1,575.37 × 662.81
4. Step 4: Simplify right side
   1,141.43x = 1,044,174.82
5. Step 5: Solve for x
   x = 1,044,174.82/1,141.43
6. Step 6: Final answer
   x = 914.79