Finding the Fourth Proportional to 1,705.32, 2,556.56 and 1,485.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.32 : 2,556.56 = 1,485.41 : x
2. Step 2: Convert to fraction form
   1,705.32/2,556.56 = 1,485.41/x
3. Step 3: Cross multiply
   1,705.32x = 2,556.56 × 1,485.41
4. Step 4: Simplify right side
   1,705.32x = 3,797,530.72
5. Step 5: Solve for x
   x = 3,797,530.72/1,705.32
6. Step 6: Final answer
   x = 2,226.87