Finding the Fourth Proportional to 2,099.34, 2,896.79 and 1,259.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.34 : 2,896.79 = 1,259.87 : x
2. Step 2: Convert to fraction form
   2,099.34/2,896.79 = 1,259.87/x
3. Step 3: Cross multiply
   2,099.34x = 2,896.79 × 1,259.87
4. Step 4: Simplify right side
   2,099.34x = 3,649,558.03
5. Step 5: Solve for x
   x = 3,649,558.03/2,099.34
6. Step 6: Final answer
   x = 1,738.43