Finding the Fourth Proportional to 1,597.25, 2,393.43 and 672.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.25 : 2,393.43 = 672.30 : x
2. Step 2: Convert to fraction form
   1,597.25/2,393.43 = 672.30/x
3. Step 3: Cross multiply
   1,597.25x = 2,393.43 × 672.30
4. Step 4: Simplify right side
   1,597.25x = 1,609,099.63
5. Step 5: Solve for x
   x = 1,609,099.63/1,597.25
6. Step 6: Final answer
   x = 1,007.42