Finding the Fourth Proportional to 1,068.94, 1,475.25 and 649.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.94 : 1,475.25 = 649.31 : x
2. Step 2: Convert to fraction form
   1,068.94/1,475.25 = 649.31/x
3. Step 3: Cross multiply
   1,068.94x = 1,475.25 × 649.31
4. Step 4: Simplify right side
   1,068.94x = 957,894.39
5. Step 5: Solve for x
   x = 957,894.39/1,068.94
6. Step 6: Final answer
   x = 896.12