Finding the Fourth Proportional to 2,168.61, 2,994.14 and 1,423.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.61 : 2,994.14 = 1,423.83 : x
2. Step 2: Convert to fraction form
   2,168.61/2,994.14 = 1,423.83/x
3. Step 3: Cross multiply
   2,168.61x = 2,994.14 × 1,423.83
4. Step 4: Simplify right side
   2,168.61x = 4,263,146.36
5. Step 5: Solve for x
   x = 4,263,146.36/2,168.61
6. Step 6: Final answer
   x = 1,965.84