Finding the Fourth Proportional to 2,159.82, 2,976.39 and 1,569.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.82 : 2,976.39 = 1,569.42 : x
2. Step 2: Convert to fraction form
   2,159.82/2,976.39 = 1,569.42/x
3. Step 3: Cross multiply
   2,159.82x = 2,976.39 × 1,569.42
4. Step 4: Simplify right side
   2,159.82x = 4,671,205.99
5. Step 5: Solve for x
   x = 4,671,205.99/2,159.82
6. Step 6: Final answer
   x = 2,162.78