Finding the Fourth Proportional to 1,597.34, 2,393.58 and 672.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.34 : 2,393.58 = 672.40 : x
2. Step 2: Convert to fraction form
   1,597.34/2,393.58 = 672.40/x
3. Step 3: Cross multiply
   1,597.34x = 2,393.58 × 672.40
4. Step 4: Simplify right side
   1,597.34x = 1,609,443.19
5. Step 5: Solve for x
   x = 1,609,443.19/1,597.34
6. Step 6: Final answer
   x = 1,007.58