Finding the Fourth Proportional to 2,605.56, 3,909.46 and 1,452.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.56 : 3,909.46 = 1,452.12 : x
2. Step 2: Convert to fraction form
   2,605.56/3,909.46 = 1,452.12/x
3. Step 3: Cross multiply
   2,605.56x = 3,909.46 × 1,452.12
4. Step 4: Simplify right side
   2,605.56x = 5,677,005.06
5. Step 5: Solve for x
   x = 5,677,005.06/2,605.56
6. Step 6: Final answer
   x = 2,178.80