Finding the Fourth Proportional to 1,068.83, 1,475.10 and 649.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.83 : 1,475.10 = 649.28 : x
2. Step 2: Convert to fraction form
   1,068.83/1,475.10 = 649.28/x
3. Step 3: Cross multiply
   1,068.83x = 1,475.10 × 649.28
4. Step 4: Simplify right side
   1,068.83x = 957,745.55
5. Step 5: Solve for x
   x = 957,745.55/1,068.83
6. Step 6: Final answer
   x = 896.07