Finding the Fourth Proportional to 1,722.37, 2,380.37 and 1,302.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.37 : 2,380.37 = 1,302.58 : x
2. Step 2: Convert to fraction form
   1,722.37/2,380.37 = 1,302.58/x
3. Step 3: Cross multiply
   1,722.37x = 2,380.37 × 1,302.58
4. Step 4: Simplify right side
   1,722.37x = 3,100,603.94
5. Step 5: Solve for x
   x = 3,100,603.94/1,722.37
6. Step 6: Final answer
   x = 1,800.20