Finding the Fourth Proportional to 1,789.52, 2,470.28 and 1,170.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.52 : 2,470.28 = 1,170.32 : x
2. Step 2: Convert to fraction form
   1,789.52/2,470.28 = 1,170.32/x
3. Step 3: Cross multiply
   1,789.52x = 2,470.28 × 1,170.32
4. Step 4: Simplify right side
   1,789.52x = 2,891,018.09
5. Step 5: Solve for x
   x = 2,891,018.09/1,789.52
6. Step 6: Final answer
   x = 1,615.53