Finding the Fourth Proportional to 2,616.76, 3,611.82 and 1,569.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.76 : 3,611.82 = 1,569.16 : x
2. Step 2: Convert to fraction form
   2,616.76/3,611.82 = 1,569.16/x
3. Step 3: Cross multiply
   2,616.76x = 3,611.82 × 1,569.16
4. Step 4: Simplify right side
   2,616.76x = 5,667,523.47
5. Step 5: Solve for x
   x = 5,667,523.47/2,616.76
6. Step 6: Final answer
   x = 2,165.86