Finding the Fourth Proportional to 1,826.72, 2,740.35 and 672.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.72 : 2,740.35 = 672.38 : x
2. Step 2: Convert to fraction form
   1,826.72/2,740.35 = 672.38/x
3. Step 3: Cross multiply
   1,826.72x = 2,740.35 × 672.38
4. Step 4: Simplify right side
   1,826.72x = 1,842,556.53
5. Step 5: Solve for x
   x = 1,842,556.53/1,826.72
6. Step 6: Final answer
   x = 1,008.67