Finding the Fourth Proportional to 1,826.18, 2,519.52 and 1,039.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.18 : 2,519.52 = 1,039.67 : x
2. Step 2: Convert to fraction form
   1,826.18/2,519.52 = 1,039.67/x
3. Step 3: Cross multiply
   1,826.18x = 2,519.52 × 1,039.67
4. Step 4: Simplify right side
   1,826.18x = 2,619,471.76
5. Step 5: Solve for x
   x = 2,619,471.76/1,826.18
6. Step 6: Final answer
   x = 1,434.40