Finding the Fourth Proportional to 2,142.05, 3,203.35 and 1,914.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.05 : 3,203.35 = 1,914.23 : x
2. Step 2: Convert to fraction form
   2,142.05/3,203.35 = 1,914.23/x
3. Step 3: Cross multiply
   2,142.05x = 3,203.35 × 1,914.23
4. Step 4: Simplify right side
   2,142.05x = 6,131,951.89
5. Step 5: Solve for x
   x = 6,131,951.89/2,142.05
6. Step 6: Final answer
   x = 2,862.66