Finding the Fourth Proportional to 2,172.30, 2,993.67 and 1,610.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172.30 : 2,993.67 = 1,610.70 : x
2. Step 2: Convert to fraction form
   2,172.30/2,993.67 = 1,610.70/x
3. Step 3: Cross multiply
   2,172.30x = 2,993.67 × 1,610.70
4. Step 4: Simplify right side
   2,172.30x = 4,821,904.27
5. Step 5: Solve for x
   x = 4,821,904.27/2,172.30
6. Step 6: Final answer
   x = 2,219.72