Finding the Fourth Proportional to 3,022.08, 4,533.18 and 1,290.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,022.08 : 4,533.18 = 1,290.72 : x
2. Step 2: Convert to fraction form
   3,022.08/4,533.18 = 1,290.72/x
3. Step 3: Cross multiply
   3,022.08x = 4,533.18 × 1,290.72
4. Step 4: Simplify right side
   3,022.08x = 5,851,066.09
5. Step 5: Solve for x
   x = 5,851,066.09/3,022.08
6. Step 6: Final answer
   x = 1,936.11