Finding the Fourth Proportional to 2,427.66, 3,638.00 and 1,040.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427.66 : 3,638.00 = 1,040.63 : x
2. Step 2: Convert to fraction form
   2,427.66/3,638.00 = 1,040.63/x
3. Step 3: Cross multiply
   2,427.66x = 3,638.00 × 1,040.63
4. Step 4: Simplify right side
   2,427.66x = 3,785,788.55
5. Step 5: Solve for x
   x = 3,785,788.55/2,427.66
6. Step 6: Final answer
   x = 1,559.44