Finding the Fourth Proportional to 1,244.00, 1,716.72 and 684.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,244.00 : 1,716.72 = 684.45 : x
2. Step 2: Convert to fraction form
   1,244.00/1,716.72 = 684.45/x
3. Step 3: Cross multiply
   1,244.00x = 1,716.72 × 684.45
4. Step 4: Simplify right side
   1,244.00x = 1,175,005.58
5. Step 5: Solve for x
   x = 1,175,005.58/1,244.00
6. Step 6: Final answer
   x = 944.54