Finding the Fourth Proportional to 1,438.98, 1,983.03 and 996.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.98 : 1,983.03 = 996.06 : x
2. Step 2: Convert to fraction form
   1,438.98/1,983.03 = 996.06/x
3. Step 3: Cross multiply
   1,438.98x = 1,983.03 × 996.06
4. Step 4: Simplify right side
   1,438.98x = 1,975,216.86
5. Step 5: Solve for x
   x = 1,975,216.86/1,438.98
6. Step 6: Final answer
   x = 1,372.65