Finding the Fourth Proportional to 1,494.37, 2,239.57 and 672.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.37 : 2,239.57 = 672.49 : x
2. Step 2: Convert to fraction form
   1,494.37/2,239.57 = 672.49/x
3. Step 3: Cross multiply
   1,494.37x = 2,239.57 × 672.49
4. Step 4: Simplify right side
   1,494.37x = 1,506,088.43
5. Step 5: Solve for x
   x = 1,506,088.43/1,494.37
6. Step 6: Final answer
   x = 1,007.84