Finding the Fourth Proportional to 2,788.08, 4,183.34 and 1,145.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.08 : 4,183.34 = 1,145.01 : x
2. Step 2: Convert to fraction form
   2,788.08/4,183.34 = 1,145.01/x
3. Step 3: Cross multiply
   2,788.08x = 4,183.34 × 1,145.01
4. Step 4: Simplify right side
   2,788.08x = 4,789,960.41
5. Step 5: Solve for x
   x = 4,789,960.41/2,788.08
6. Step 6: Final answer
   x = 1,718.01