Finding the Fourth Proportional to 1,493.34, 2,238.55 and 671.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.34 : 2,238.55 = 671.82 : x
2. Step 2: Convert to fraction form
   1,493.34/2,238.55 = 671.82/x
3. Step 3: Cross multiply
   1,493.34x = 2,238.55 × 671.82
4. Step 4: Simplify right side
   1,493.34x = 1,503,902.66
5. Step 5: Solve for x
   x = 1,503,902.66/1,493.34
6. Step 6: Final answer
   x = 1,007.07