Finding the Fourth Proportional to 1,712.52, 2,573.55 and 1,019.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,712.52 : 2,573.55 = 1,019.28 : x
2. Step 2: Convert to fraction form
   1,712.52/2,573.55 = 1,019.28/x
3. Step 3: Cross multiply
   1,712.52x = 2,573.55 × 1,019.28
4. Step 4: Simplify right side
   1,712.52x = 2,623,168.04
5. Step 5: Solve for x
   x = 2,623,168.04/1,712.52
6. Step 6: Final answer
   x = 1,531.76