Finding the Fourth Proportional to 2,543.22, 3,509.34 and 1,424.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.22 : 3,509.34 = 1,424.05 : x
2. Step 2: Convert to fraction form
   2,543.22/3,509.34 = 1,424.05/x
3. Step 3: Cross multiply
   2,543.22x = 3,509.34 × 1,424.05
4. Step 4: Simplify right side
   2,543.22x = 4,997,475.63
5. Step 5: Solve for x
   x = 4,997,475.63/2,543.22
6. Step 6: Final answer
   x = 1,965.02