Finding the Fourth Proportional to 1,050.47, 1,449.72 and 695.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.47 : 1,449.72 = 695.78 : x
2. Step 2: Convert to fraction form
   1,050.47/1,449.72 = 695.78/x
3. Step 3: Cross multiply
   1,050.47x = 1,449.72 × 695.78
4. Step 4: Simplify right side
   1,050.47x = 1,008,686.18
5. Step 5: Solve for x
   x = 1,008,686.18/1,050.47
6. Step 6: Final answer
   x = 960.22