Finding the Fourth Proportional to 2,133.86, 3,200.38 and 672.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133.86 : 3,200.38 = 672.62 : x
2. Step 2: Convert to fraction form
   2,133.86/3,200.38 = 672.62/x
3. Step 3: Cross multiply
   2,133.86x = 3,200.38 × 672.62
4. Step 4: Simplify right side
   2,133.86x = 2,152,621.91
5. Step 5: Solve for x
   x = 2,152,621.91/2,133.86
6. Step 6: Final answer
   x = 1,008.79