Finding the Fourth Proportional to 1,774.45, 2,448.55 and 1,028.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.45 : 2,448.55 = 1,028.64 : x
2. Step 2: Convert to fraction form
   1,774.45/2,448.55 = 1,028.64/x
3. Step 3: Cross multiply
   1,774.45x = 2,448.55 × 1,028.64
4. Step 4: Simplify right side
   1,774.45x = 2,518,667.78
5. Step 5: Solve for x
   x = 2,518,667.78/1,774.45
6. Step 6: Final answer
   x = 1,419.41