Finding the Fourth Proportional to 2,174.78, 3,262.34 and 1,078.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.78 : 3,262.34 = 1,078.04 : x
2. Step 2: Convert to fraction form
   2,174.78/3,262.34 = 1,078.04/x
3. Step 3: Cross multiply
   2,174.78x = 3,262.34 × 1,078.04
4. Step 4: Simplify right side
   2,174.78x = 3,516,933.01
5. Step 5: Solve for x
   x = 3,516,933.01/2,174.78
6. Step 6: Final answer
   x = 1,617.14