Finding the Fourth Proportional to 2,558.94, 3,837.54 and 998.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.94 : 3,837.54 = 998.82 : x
2. Step 2: Convert to fraction form
   2,558.94/3,837.54 = 998.82/x
3. Step 3: Cross multiply
   2,558.94x = 3,837.54 × 998.82
4. Step 4: Simplify right side
   2,558.94x = 3,833,011.70
5. Step 5: Solve for x
   x = 3,833,011.70/2,558.94
6. Step 6: Final answer
   x = 1,497.89