Finding the Fourth Proportional to 2,275.16, 3,136.38 and 1,609.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.16 : 3,136.38 = 1,609.96 : x
2. Step 2: Convert to fraction form
   2,275.16/3,136.38 = 1,609.96/x
3. Step 3: Cross multiply
   2,275.16x = 3,136.38 × 1,609.96
4. Step 4: Simplify right side
   2,275.16x = 5,049,446.34
5. Step 5: Solve for x
   x = 5,049,446.34/2,275.16
6. Step 6: Final answer
   x = 2,219.38