Finding the Fourth Proportional to 1,826.47, 2,722.35 and 1,722.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.47 : 2,722.35 = 1,722.69 : x
2. Step 2: Convert to fraction form
   1,826.47/2,722.35 = 1,722.69/x
3. Step 3: Cross multiply
   1,826.47x = 2,722.35 × 1,722.69
4. Step 4: Simplify right side
   1,826.47x = 4,689,765.12
5. Step 5: Solve for x
   x = 4,689,765.12/1,826.47
6. Step 6: Final answer
   x = 2,567.67