Finding the Fourth Proportional to 1,782.38, 2,459.97 and 1,036.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.38 : 2,459.97 = 1,036.78 : x
2. Step 2: Convert to fraction form
   1,782.38/2,459.97 = 1,036.78/x
3. Step 3: Cross multiply
   1,782.38x = 2,459.97 × 1,036.78
4. Step 4: Simplify right side
   1,782.38x = 2,550,441.55
5. Step 5: Solve for x
   x = 2,550,441.55/1,782.38
6. Step 6: Final answer
   x = 1,430.92