Finding the Fourth Proportional to 1,609.29, 2,218.59 and 1,574.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.29 : 2,218.59 = 1,574.37 : x
2. Step 2: Convert to fraction form
   1,609.29/2,218.59 = 1,574.37/x
3. Step 3: Cross multiply
   1,609.29x = 2,218.59 × 1,574.37
4. Step 4: Simplify right side
   1,609.29x = 3,492,881.54
5. Step 5: Solve for x
   x = 3,492,881.54/1,609.29
6. Step 6: Final answer
   x = 2,170.45