Finding the Fourth Proportional to 2,613.81, 3,606.51 and 1,565.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.81 : 3,606.51 = 1,565.25 : x
2. Step 2: Convert to fraction form
   2,613.81/3,606.51 = 1,565.25/x
3. Step 3: Cross multiply
   2,613.81x = 3,606.51 × 1,565.25
4. Step 4: Simplify right side
   2,613.81x = 5,645,089.78
5. Step 5: Solve for x
   x = 5,645,089.78/2,613.81
6. Step 6: Final answer
   x = 2,159.72