Finding the Fourth Proportional to 1,645.52, 2,462.00 and 1,438.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645.52 : 2,462.00 = 1,438.56 : x
2. Step 2: Convert to fraction form
   1,645.52/2,462.00 = 1,438.56/x
3. Step 3: Cross multiply
   1,645.52x = 2,462.00 × 1,438.56
4. Step 4: Simplify right side
   1,645.52x = 3,541,727.53
5. Step 5: Solve for x
   x = 3,541,727.53/1,645.52
6. Step 6: Final answer
   x = 2,152.35