Finding the Fourth Proportional to 2,389.21, 3,297.81 and 1,549.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.21 : 3,297.81 = 1,549.96 : x
2. Step 2: Convert to fraction form
   2,389.21/3,297.81 = 1,549.96/x
3. Step 3: Cross multiply
   2,389.21x = 3,297.81 × 1,549.96
4. Step 4: Simplify right side
   2,389.21x = 5,111,473.59
5. Step 5: Solve for x
   x = 5,111,473.59/2,389.21
6. Step 6: Final answer
   x = 2,139.40