Finding the Fourth Proportional to 1,768.51, 2,440.56 and 1,022.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.51 : 2,440.56 = 1,022.59 : x
2. Step 2: Convert to fraction form
   1,768.51/2,440.56 = 1,022.59/x
3. Step 3: Cross multiply
   1,768.51x = 2,440.56 × 1,022.59
4. Step 4: Simplify right side
   1,768.51x = 2,495,692.25
5. Step 5: Solve for x
   x = 2,495,692.25/1,768.51
6. Step 6: Final answer
   x = 1,411.18