Finding the Fourth Proportional to 2,007.18, 3,012.39 and 1,033.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.18 : 3,012.39 = 1,033.56 : x
2. Step 2: Convert to fraction form
   2,007.18/3,012.39 = 1,033.56/x
3. Step 3: Cross multiply
   2,007.18x = 3,012.39 × 1,033.56
4. Step 4: Simplify right side
   2,007.18x = 3,113,485.81
5. Step 5: Solve for x
   x = 3,113,485.81/2,007.18
6. Step 6: Final answer
   x = 1,551.17