Finding the Fourth Proportional to 2,675.31, 4,012.47 and 826.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,675.31 : 4,012.47 = 826.08 : x
2. Step 2: Convert to fraction form
   2,675.31/4,012.47 = 826.08/x
3. Step 3: Cross multiply
   2,675.31x = 4,012.47 × 826.08
4. Step 4: Simplify right side
   2,675.31x = 3,314,621.22
5. Step 5: Solve for x
   x = 3,314,621.22/2,675.31
6. Step 6: Final answer
   x = 1,238.97