Finding the Fourth Proportional to 1,069.43, 1,475.17 and 649.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.43 : 1,475.17 = 649.57 : x
2. Step 2: Convert to fraction form
   1,069.43/1,475.17 = 649.57/x
3. Step 3: Cross multiply
   1,069.43x = 1,475.17 × 649.57
4. Step 4: Simplify right side
   1,069.43x = 958,215.55
5. Step 5: Solve for x
   x = 958,215.55/1,069.43
6. Step 6: Final answer
   x = 896.01