Finding the Fourth Proportional to 2,159.89, 2,979.76 and 1,362.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.89 : 2,979.76 = 1,362.94 : x
2. Step 2: Convert to fraction form
   2,159.89/2,979.76 = 1,362.94/x
3. Step 3: Cross multiply
   2,159.89x = 2,979.76 × 1,362.94
4. Step 4: Simplify right side
   2,159.89x = 4,061,226.65
5. Step 5: Solve for x
   x = 4,061,226.65/2,159.89
6. Step 6: Final answer
   x = 1,880.30