Finding the Fourth Proportional to 3,725.33, 5,581.53 and 2,261.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,725.33 : 5,581.53 = 2,261.39 : x
2. Step 2: Convert to fraction form
   3,725.33/5,581.53 = 2,261.39/x
3. Step 3: Cross multiply
   3,725.33x = 5,581.53 × 2,261.39
4. Step 4: Simplify right side
   3,725.33x = 12,621,988.22
5. Step 5: Solve for x
   x = 12,621,988.22/3,725.33
6. Step 6: Final answer
   x = 3,388.16