Finding the Fourth Proportional to 1,642.16, 2,472.50 and 1,448.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642.16 : 2,472.50 = 1,448.37 : x
2. Step 2: Convert to fraction form
   1,642.16/2,472.50 = 1,448.37/x
3. Step 3: Cross multiply
   1,642.16x = 2,472.50 × 1,448.37
4. Step 4: Simplify right side
   1,642.16x = 3,581,093.01
5. Step 5: Solve for x
   x = 3,581,093.01/1,642.16
6. Step 6: Final answer
   x = 2,180.72