Finding the Fourth Proportional to 2,185.95, 3,279.03 and 1,089.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.95 : 3,279.03 = 1,089.03 : x
2. Step 2: Convert to fraction form
   2,185.95/3,279.03 = 1,089.03/x
3. Step 3: Cross multiply
   2,185.95x = 3,279.03 × 1,089.03
4. Step 4: Simplify right side
   2,185.95x = 3,570,962.04
5. Step 5: Solve for x
   x = 3,570,962.04/2,185.95
6. Step 6: Final answer
   x = 1,633.60