Finding the Fourth Proportional to 1,725.31, 2,381.45 and 1,017.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.31 : 2,381.45 = 1,017.10 : x
2. Step 2: Convert to fraction form
   1,725.31/2,381.45 = 1,017.10/x
3. Step 3: Cross multiply
   1,725.31x = 2,381.45 × 1,017.10
4. Step 4: Simplify right side
   1,725.31x = 2,422,172.80
5. Step 5: Solve for x
   x = 2,422,172.80/1,725.31
6. Step 6: Final answer
   x = 1,403.91