Finding the Fourth Proportional to 2,007.06, 3,010.59 and 546.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.06 : 3,010.59 = 546.21 : x
2. Step 2: Convert to fraction form
   2,007.06/3,010.59 = 546.21/x
3. Step 3: Cross multiply
   2,007.06x = 3,010.59 × 546.21
4. Step 4: Simplify right side
   2,007.06x = 1,644,396.58
5. Step 5: Solve for x
   x = 1,644,396.58/2,007.06
6. Step 6: Final answer
   x = 819.31