Finding the Fourth Proportional to 2,424.81, 3,638.31 and 1,038.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,424.81 : 3,638.31 = 1,038.51 : x
2. Step 2: Convert to fraction form
   2,424.81/3,638.31 = 1,038.51/x
3. Step 3: Cross multiply
   2,424.81x = 3,638.31 × 1,038.51
4. Step 4: Simplify right side
   2,424.81x = 3,778,421.32
5. Step 5: Solve for x
   x = 3,778,421.32/2,424.81
6. Step 6: Final answer
   x = 1,558.23