Finding the Fourth Proportional to 2,028.16, 3,042.51 and 712.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.16 : 3,042.51 = 712.05 : x
2. Step 2: Convert to fraction form
   2,028.16/3,042.51 = 712.05/x
3. Step 3: Cross multiply
   2,028.16x = 3,042.51 × 712.05
4. Step 4: Simplify right side
   2,028.16x = 2,166,419.25
5. Step 5: Solve for x
   x = 2,166,419.25/2,028.16
6. Step 6: Final answer
   x = 1,068.17