Finding the Fourth Proportional to 1,826.40, 2,519.52 and 1,196.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.40 : 2,519.52 = 1,196.64 : x
2. Step 2: Convert to fraction form
   1,826.40/2,519.52 = 1,196.64/x
3. Step 3: Cross multiply
   1,826.40x = 2,519.52 × 1,196.64
4. Step 4: Simplify right side
   1,826.40x = 3,014,958.41
5. Step 5: Solve for x
   x = 3,014,958.41/1,826.40
6. Step 6: Final answer
   x = 1,650.77