Finding the Fourth Proportional to 2,118.63, 3,179.43 and 1,426.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.63 : 3,179.43 = 1,426.62 : x
2. Step 2: Convert to fraction form
   2,118.63/3,179.43 = 1,426.62/x
3. Step 3: Cross multiply
   2,118.63x = 3,179.43 × 1,426.62
4. Step 4: Simplify right side
   2,118.63x = 4,535,838.43
5. Step 5: Solve for x
   x = 4,535,838.43/2,118.63
6. Step 6: Final answer
   x = 2,140.93