Finding the Fourth Proportional to 1,825.47, 2,519.10 and 1,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,825.47 : 2,519.10 = 1,039.50 : x
2. Step 2: Convert to fraction form
   1,825.47/2,519.10 = 1,039.50/x
3. Step 3: Cross multiply
   1,825.47x = 2,519.10 × 1,039.50
4. Step 4: Simplify right side
   1,825.47x = 2,618,604.45
5. Step 5: Solve for x
   x = 2,618,604.45/1,825.47
6. Step 6: Final answer
   x = 1,434.48