Finding the Fourth Proportional to 1,608.52, 2,218.92 and 945.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608.52 : 2,218.92 = 945.28 : x
2. Step 2: Convert to fraction form
   1,608.52/2,218.92 = 945.28/x
3. Step 3: Cross multiply
   1,608.52x = 2,218.92 × 945.28
4. Step 4: Simplify right side
   1,608.52x = 2,097,500.70
5. Step 5: Solve for x
   x = 2,097,500.70/1,608.52
6. Step 6: Final answer
   x = 1,303.99