Finding the Fourth Proportional to 2,784.78, 4,174.74 and 1,140.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.78 : 4,174.74 = 1,140.27 : x
2. Step 2: Convert to fraction form
   2,784.78/4,174.74 = 1,140.27/x
3. Step 3: Cross multiply
   2,784.78x = 4,174.74 × 1,140.27
4. Step 4: Simplify right side
   2,784.78x = 4,760,330.78
5. Step 5: Solve for x
   x = 4,760,330.78/2,784.78
6. Step 6: Final answer
   x = 1,709.41