Finding the Fourth Proportional to 2,558.02, 3,837.59 and 826.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.02 : 3,837.59 = 826.62 : x
2. Step 2: Convert to fraction form
   2,558.02/3,837.59 = 826.62/x
3. Step 3: Cross multiply
   2,558.02x = 3,837.59 × 826.62
4. Step 4: Simplify right side
   2,558.02x = 3,172,228.65
5. Step 5: Solve for x
   x = 3,172,228.65/2,558.02
6. Step 6: Final answer
   x = 1,240.11