Finding the Fourth Proportional to 1,674.52, 2,310.56 and 928.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.52 : 2,310.56 = 928.47 : x
2. Step 2: Convert to fraction form
   1,674.52/2,310.56 = 928.47/x
3. Step 3: Cross multiply
   1,674.52x = 2,310.56 × 928.47
4. Step 4: Simplify right side
   1,674.52x = 2,145,293.15
5. Step 5: Solve for x
   x = 2,145,293.15/1,674.52
6. Step 6: Final answer
   x = 1,281.14