Finding the Fourth Proportional to 1,721.78, 2,372.37 and 1,510.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.78 : 2,372.37 = 1,510.34 : x
2. Step 2: Convert to fraction form
   1,721.78/2,372.37 = 1,510.34/x
3. Step 3: Cross multiply
   1,721.78x = 2,372.37 × 1,510.34
4. Step 4: Simplify right side
   1,721.78x = 3,583,085.31
5. Step 5: Solve for x
   x = 3,583,085.31/1,721.78
6. Step 6: Final answer
   x = 2,081.04