Finding the Fourth Proportional to 1,643.40, 2,267.82 and 944.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.40 : 2,267.82 = 944.82 : x
2. Step 2: Convert to fraction form
   1,643.40/2,267.82 = 944.82/x
3. Step 3: Cross multiply
   1,643.40x = 2,267.82 × 944.82
4. Step 4: Simplify right side
   1,643.40x = 2,142,681.69
5. Step 5: Solve for x
   x = 2,142,681.69/1,643.40
6. Step 6: Final answer
   x = 1,303.81