Finding the Fourth Proportional to 2,790.78, 4,182.52 and 1,145.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.78 : 4,182.52 = 1,145.06 : x
2. Step 2: Convert to fraction form
   2,790.78/4,182.52 = 1,145.06/x
3. Step 3: Cross multiply
   2,790.78x = 4,182.52 × 1,145.06
4. Step 4: Simplify right side
   2,790.78x = 4,789,236.35
5. Step 5: Solve for x
   x = 4,789,236.35/2,790.78
6. Step 6: Final answer
   x = 1,716.09