Finding the Fourth Proportional to 1,826.64, 2,520.81 and 1,040.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.64 : 2,520.81 = 1,040.69 : x
2. Step 2: Convert to fraction form
   1,826.64/2,520.81 = 1,040.69/x
3. Step 3: Cross multiply
   1,826.64x = 2,520.81 × 1,040.69
4. Step 4: Simplify right side
   1,826.64x = 2,623,388.06
5. Step 5: Solve for x
   x = 2,623,388.06/1,826.64
6. Step 6: Final answer
   x = 1,436.18