Finding the Fourth Proportional to 1,765.69, 2,436.09 and 1,019.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,765.69 : 2,436.09 = 1,019.55 : x
2. Step 2: Convert to fraction form
   1,765.69/2,436.09 = 1,019.55/x
3. Step 3: Cross multiply
   1,765.69x = 2,436.09 × 1,019.55
4. Step 4: Simplify right side
   1,765.69x = 2,483,715.56
5. Step 5: Solve for x
   x = 2,483,715.56/1,765.69
6. Step 6: Final answer
   x = 1,406.65