Finding the Fourth Proportional to 1,765.40, 2,436.45 and 1,019.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,765.40 : 2,436.45 = 1,019.34 : x
2. Step 2: Convert to fraction form
   1,765.40/2,436.45 = 1,019.34/x
3. Step 3: Cross multiply
   1,765.40x = 2,436.45 × 1,019.34
4. Step 4: Simplify right side
   1,765.40x = 2,483,570.94
5. Step 5: Solve for x
   x = 2,483,570.94/1,765.40
6. Step 6: Final answer
   x = 1,406.81