Finding the Fourth Proportional to 2,820.06, 4,231.17 and 1,064.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.06 : 4,231.17 = 1,064.94 : x
2. Step 2: Convert to fraction form
   2,820.06/4,231.17 = 1,064.94/x
3. Step 3: Cross multiply
   2,820.06x = 4,231.17 × 1,064.94
4. Step 4: Simplify right side
   2,820.06x = 4,505,942.18
5. Step 5: Solve for x
   x = 4,505,942.18/2,820.06
6. Step 6: Final answer
   x = 1,597.82