Finding the Fourth Proportional to 2,001.32, 3,004.78 and 1,028.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,001.32 : 3,004.78 = 1,028.12 : x
2. Step 2: Convert to fraction form
   2,001.32/3,004.78 = 1,028.12/x
3. Step 3: Cross multiply
   2,001.32x = 3,004.78 × 1,028.12
4. Step 4: Simplify right side
   2,001.32x = 3,089,274.41
5. Step 5: Solve for x
   x = 3,089,274.41/2,001.32
6. Step 6: Final answer
   x = 1,543.62