Finding the Fourth Proportional to 1,725.22, 2,380.74 and 1,017.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.22 : 2,380.74 = 1,017.15 : x
2. Step 2: Convert to fraction form
   1,725.22/2,380.74 = 1,017.15/x
3. Step 3: Cross multiply
   1,725.22x = 2,380.74 × 1,017.15
4. Step 4: Simplify right side
   1,725.22x = 2,421,569.69
5. Step 5: Solve for x
   x = 2,421,569.69/1,725.22
6. Step 6: Final answer
   x = 1,403.63