Finding the Fourth Proportional to 1,397.30, 2,096.35 and 667.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.30 : 2,096.35 = 667.49 : x
2. Step 2: Convert to fraction form
   1,397.30/2,096.35 = 667.49/x
3. Step 3: Cross multiply
   1,397.30x = 2,096.35 × 667.49
4. Step 4: Simplify right side
   1,397.30x = 1,399,280.51
5. Step 5: Solve for x
   x = 1,399,280.51/1,397.30
6. Step 6: Final answer
   x = 1,001.42