Finding the Fourth Proportional to 1,597.78, 2,395.05 and 673.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.78 : 2,395.05 = 673.91 : x
2. Step 2: Convert to fraction form
   1,597.78/2,395.05 = 673.91/x
3. Step 3: Cross multiply
   1,597.78x = 2,395.05 × 673.91
4. Step 4: Simplify right side
   1,597.78x = 1,614,048.15
5. Step 5: Solve for x
   x = 1,614,048.15/1,597.78
6. Step 6: Final answer
   x = 1,010.18