Finding the Fourth Proportional to 3,665.39, 5,493.06 and 1,555.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.39 : 5,493.06 = 1,555.25 : x
2. Step 2: Convert to fraction form
   3,665.39/5,493.06 = 1,555.25/x
3. Step 3: Cross multiply
   3,665.39x = 5,493.06 × 1,555.25
4. Step 4: Simplify right side
   3,665.39x = 8,543,054.10
5. Step 5: Solve for x
   x = 8,543,054.10/3,665.39
6. Step 6: Final answer
   x = 2,330.74