Finding the Fourth Proportional to 2,621.50, 3,617.60 and 1,426.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.50 : 3,617.60 = 1,426.43 : x
2. Step 2: Convert to fraction form
   2,621.50/3,617.60 = 1,426.43/x
3. Step 3: Cross multiply
   2,621.50x = 3,617.60 × 1,426.43
4. Step 4: Simplify right side
   2,621.50x = 5,160,246.04
5. Step 5: Solve for x
   x = 5,160,246.04/2,621.50
6. Step 6: Final answer
   x = 1,968.44