Finding the Fourth Proportional to 1,722.98, 2,587.35 and 1,709.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.98 : 2,587.35 = 1,709.54 : x
2. Step 2: Convert to fraction form
   1,722.98/2,587.35 = 1,709.54/x
3. Step 3: Cross multiply
   1,722.98x = 2,587.35 × 1,709.54
4. Step 4: Simplify right side
   1,722.98x = 4,423,178.32
5. Step 5: Solve for x
   x = 4,423,178.32/1,722.98
6. Step 6: Final answer
   x = 2,567.17