Finding the Fourth Proportional to 1,714.43, 2,365.90 and 928.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,714.43 : 2,365.90 = 928.48 : x
2. Step 2: Convert to fraction form
   1,714.43/2,365.90 = 928.48/x
3. Step 3: Cross multiply
   1,714.43x = 2,365.90 × 928.48
4. Step 4: Simplify right side
   1,714.43x = 2,196,690.83
5. Step 5: Solve for x
   x = 2,196,690.83/1,714.43
6. Step 6: Final answer
   x = 1,281.30