Finding the Fourth Proportional to 1,996.98, 2,756.33 and 1,210.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,996.98 : 2,756.33 = 1,210.88 : x
2. Step 2: Convert to fraction form
   1,996.98/2,756.33 = 1,210.88/x
3. Step 3: Cross multiply
   1,996.98x = 2,756.33 × 1,210.88
4. Step 4: Simplify right side
   1,996.98x = 3,337,565.03
5. Step 5: Solve for x
   x = 3,337,565.03/1,996.98
6. Step 6: Final answer
   x = 1,671.31