Finding the Fourth Proportional to 1,643.25, 2,267.96 and 944.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.25 : 2,267.96 = 944.49 : x
2. Step 2: Convert to fraction form
   1,643.25/2,267.96 = 944.49/x
3. Step 3: Cross multiply
   1,643.25x = 2,267.96 × 944.49
4. Step 4: Simplify right side
   1,643.25x = 2,142,060.82
5. Step 5: Solve for x
   x = 2,142,060.82/1,643.25
6. Step 6: Final answer
   x = 1,303.55