Finding the Fourth Proportional to 2,146.82, 2,962.60 and 1,215.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.82 : 2,962.60 = 1,215.32 : x
2. Step 2: Convert to fraction form
   2,146.82/2,962.60 = 1,215.32/x
3. Step 3: Cross multiply
   2,146.82x = 2,962.60 × 1,215.32
4. Step 4: Simplify right side
   2,146.82x = 3,600,507.03
5. Step 5: Solve for x
   x = 3,600,507.03/2,146.82
6. Step 6: Final answer
   x = 1,677.14