Finding the Fourth Proportional to 2,007.56, 3,014.04 and 912.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.56 : 3,014.04 = 912.18 : x
2. Step 2: Convert to fraction form
   2,007.56/3,014.04 = 912.18/x
3. Step 3: Cross multiply
   2,007.56x = 3,014.04 × 912.18
4. Step 4: Simplify right side
   2,007.56x = 2,749,347.01
5. Step 5: Solve for x
   x = 2,749,347.01/2,007.56
6. Step 6: Final answer
   x = 1,369.50