Finding the Fourth Proportional to 2,147.02, 2,962.38 and 1,215.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.02 : 2,962.38 = 1,215.52 : x
2. Step 2: Convert to fraction form
   2,147.02/2,962.38 = 1,215.52/x
3. Step 3: Cross multiply
   2,147.02x = 2,962.38 × 1,215.52
4. Step 4: Simplify right side
   2,147.02x = 3,600,832.14
5. Step 5: Solve for x
   x = 3,600,832.14/2,147.02
6. Step 6: Final answer
   x = 1,677.13