Finding the Fourth Proportional to 2,159.57, 2,976.05 and 1,569.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.57 : 2,976.05 = 1,569.17 : x
2. Step 2: Convert to fraction form
   2,159.57/2,976.05 = 1,569.17/x
3. Step 3: Cross multiply
   2,159.57x = 2,976.05 × 1,569.17
4. Step 4: Simplify right side
   2,159.57x = 4,669,920.53
5. Step 5: Solve for x
   x = 4,669,920.53/2,159.57
6. Step 6: Final answer
   x = 2,162.43