Finding the Fourth Proportional to 2,204.89, 3,307.37 and 1,685.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,204.89 : 3,307.37 = 1,685.81 : x
2. Step 2: Convert to fraction form
   2,204.89/3,307.37 = 1,685.81/x
3. Step 3: Cross multiply
   2,204.89x = 3,307.37 × 1,685.81
4. Step 4: Simplify right side
   2,204.89x = 5,575,597.26
5. Step 5: Solve for x
   x = 5,575,597.26/2,204.89
6. Step 6: Final answer
   x = 2,528.74