Finding the Fourth Proportional to 1,985.00, 2,738.85 and 1,198.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.00 : 2,738.85 = 1,198.89 : x
2. Step 2: Convert to fraction form
   1,985.00/2,738.85 = 1,198.89/x
3. Step 3: Cross multiply
   1,985.00x = 2,738.85 × 1,198.89
4. Step 4: Simplify right side
   1,985.00x = 3,283,579.88
5. Step 5: Solve for x
   x = 3,283,579.88/1,985.00
6. Step 6: Final answer
   x = 1,654.20