Finding the Fourth Proportional to 2,164.50, 2,984.01 and 1,455.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.50 : 2,984.01 = 1,455.12 : x
2. Step 2: Convert to fraction form
   2,164.50/2,984.01 = 1,455.12/x
3. Step 3: Cross multiply
   2,164.50x = 2,984.01 × 1,455.12
4. Step 4: Simplify right side
   2,164.50x = 4,342,092.63
5. Step 5: Solve for x
   x = 4,342,092.63/2,164.50
6. Step 6: Final answer
   x = 2,006.05