Finding the Fourth Proportional to 1,493.89, 2,240.82 and 671.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.89 : 2,240.82 = 671.58 : x
2. Step 2: Convert to fraction form
   1,493.89/2,240.82 = 671.58/x
3. Step 3: Cross multiply
   1,493.89x = 2,240.82 × 671.58
4. Step 4: Simplify right side
   1,493.89x = 1,504,897.46
5. Step 5: Solve for x
   x = 1,504,897.46/1,493.89
6. Step 6: Final answer
   x = 1,007.37