Finding the Fourth Proportional to 2,645.76, 3,967.25 and 1,412.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.76 : 3,967.25 = 1,412.84 : x
2. Step 2: Convert to fraction form
   2,645.76/3,967.25 = 1,412.84/x
3. Step 3: Cross multiply
   2,645.76x = 3,967.25 × 1,412.84
4. Step 4: Simplify right side
   2,645.76x = 5,605,062.59
5. Step 5: Solve for x
   x = 5,605,062.59/2,645.76
6. Step 6: Final answer
   x = 2,118.51