Finding the Fourth Proportional to 2,161.58, 2,984.42 and 1,663.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161.58 : 2,984.42 = 1,663.34 : x
2. Step 2: Convert to fraction form
   2,161.58/2,984.42 = 1,663.34/x
3. Step 3: Cross multiply
   2,161.58x = 2,984.42 × 1,663.34
4. Step 4: Simplify right side
   2,161.58x = 4,964,096.85
5. Step 5: Solve for x
   x = 4,964,096.85/2,161.58
6. Step 6: Final answer
   x = 2,296.51