Finding the Fourth Proportional to 2,559.06, 3,837.65 and 2,012.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.06 : 3,837.65 = 2,012.31 : x
2. Step 2: Convert to fraction form
   2,559.06/3,837.65 = 2,012.31/x
3. Step 3: Cross multiply
   2,559.06x = 3,837.65 × 2,012.31
4. Step 4: Simplify right side
   2,559.06x = 7,722,531.41
5. Step 5: Solve for x
   x = 7,722,531.41/2,559.06
6. Step 6: Final answer
   x = 3,017.72