Finding the Fourth Proportional to 2,145.16, 3,216.86 and 1,452.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.16 : 3,216.86 = 1,452.02 : x
2. Step 2: Convert to fraction form
   2,145.16/3,216.86 = 1,452.02/x
3. Step 3: Cross multiply
   2,145.16x = 3,216.86 × 1,452.02
4. Step 4: Simplify right side
   2,145.16x = 4,670,921.71
5. Step 5: Solve for x
   x = 4,670,921.71/2,145.16
6. Step 6: Final answer
   x = 2,177.43