Finding the Fourth Proportional to 2,672.34, 4,008.17 and 823.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.34 : 4,008.17 = 823.46 : x
2. Step 2: Convert to fraction form
   2,672.34/4,008.17 = 823.46/x
3. Step 3: Cross multiply
   2,672.34x = 4,008.17 × 823.46
4. Step 4: Simplify right side
   2,672.34x = 3,300,543.51
5. Step 5: Solve for x
   x = 3,300,543.51/2,672.34
6. Step 6: Final answer
   x = 1,235.08