Finding the Fourth Proportional to 2,146.84, 2,962.76 and 1,215.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.84 : 2,962.76 = 1,215.16 : x
2. Step 2: Convert to fraction form
   2,146.84/2,962.76 = 1,215.16/x
3. Step 3: Cross multiply
   2,146.84x = 2,962.76 × 1,215.16
4. Step 4: Simplify right side
   2,146.84x = 3,600,227.44
5. Step 5: Solve for x
   x = 3,600,227.44/2,146.84
6. Step 6: Final answer
   x = 1,676.99