Finding the Fourth Proportional to 1,169.36, 1,613.76 and 672.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,169.36 : 1,613.76 = 672.10 : x
2. Step 2: Convert to fraction form
   1,169.36/1,613.76 = 672.10/x
3. Step 3: Cross multiply
   1,169.36x = 1,613.76 × 672.10
4. Step 4: Simplify right side
   1,169.36x = 1,084,608.10
5. Step 5: Solve for x
   x = 1,084,608.10/1,169.36
6. Step 6: Final answer
   x = 927.52