Finding the Fourth Proportional to 3,609.88, 5,405.59 and 2,047.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,609.88 : 5,405.59 = 2,047.55 : x
2. Step 2: Convert to fraction form
   3,609.88/5,405.59 = 2,047.55/x
3. Step 3: Cross multiply
   3,609.88x = 5,405.59 × 2,047.55
4. Step 4: Simplify right side
   3,609.88x = 11,068,179.82
5. Step 5: Solve for x
   x = 11,068,179.82/3,609.88
6. Step 6: Final answer
   x = 3,066.08