Finding the Fourth Proportional to 2,145.50, 3,216.05 and 1,452.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.50 : 3,216.05 = 1,452.23 : x
2. Step 2: Convert to fraction form
   2,145.50/3,216.05 = 1,452.23/x
3. Step 3: Cross multiply
   2,145.50x = 3,216.05 × 1,452.23
4. Step 4: Simplify right side
   2,145.50x = 4,670,437.03
5. Step 5: Solve for x
   x = 4,670,437.03/2,145.50
6. Step 6: Final answer
   x = 2,176.86