Finding the Fourth Proportional to 2,098.78, 2,895.87 and 1,259.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.78 : 2,895.87 = 1,259.26 : x
2. Step 2: Convert to fraction form
   2,098.78/2,895.87 = 1,259.26/x
3. Step 3: Cross multiply
   2,098.78x = 2,895.87 × 1,259.26
4. Step 4: Simplify right side
   2,098.78x = 3,646,638.78
5. Step 5: Solve for x
   x = 3,646,638.78/2,098.78
6. Step 6: Final answer
   x = 1,737.51