Finding the Fourth Proportional to 1,323.40, 1,826.50 and 799.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.40 : 1,826.50 = 799.72 : x
2. Step 2: Convert to fraction form
   1,323.40/1,826.50 = 799.72/x
3. Step 3: Cross multiply
   1,323.40x = 1,826.50 × 799.72
4. Step 4: Simplify right side
   1,323.40x = 1,460,688.58
5. Step 5: Solve for x
   x = 1,460,688.58/1,323.40
6. Step 6: Final answer
   x = 1,103.74