Finding the Fourth Proportional to 2,164.58, 2,988.56 and 1,666.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.58 : 2,988.56 = 1,666.34 : x
2. Step 2: Convert to fraction form
   2,164.58/2,988.56 = 1,666.34/x
3. Step 3: Cross multiply
   2,164.58x = 2,988.56 × 1,666.34
4. Step 4: Simplify right side
   2,164.58x = 4,979,957.07
5. Step 5: Solve for x
   x = 4,979,957.07/2,164.58
6. Step 6: Final answer
   x = 2,300.66