Finding the Fourth Proportional to 1,609.52, 2,221.56 and 946.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.52 : 2,221.56 = 946.59 : x
2. Step 2: Convert to fraction form
   1,609.52/2,221.56 = 946.59/x
3. Step 3: Cross multiply
   1,609.52x = 2,221.56 × 946.59
4. Step 4: Simplify right side
   1,609.52x = 2,102,898.15
5. Step 5: Solve for x
   x = 2,102,898.15/1,609.52
6. Step 6: Final answer
   x = 1,306.54