Finding the Fourth Proportional to 1,721.52, 2,375.52 and 1,022.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.52 : 2,375.52 = 1,022.76 : x
2. Step 2: Convert to fraction form
   1,721.52/2,375.52 = 1,022.76/x
3. Step 3: Cross multiply
   1,721.52x = 2,375.52 × 1,022.76
4. Step 4: Simplify right side
   1,721.52x = 2,429,586.84
5. Step 5: Solve for x
   x = 2,429,586.84/1,721.52
6. Step 6: Final answer
   x = 1,411.30