Finding the Fourth Proportional to 2,543.60, 3,510.30 and 1,424.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.60 : 3,510.30 = 1,424.48 : x
2. Step 2: Convert to fraction form
   2,543.60/3,510.30 = 1,424.48/x
3. Step 3: Cross multiply
   2,543.60x = 3,510.30 × 1,424.48
4. Step 4: Simplify right side
   2,543.60x = 5,000,339.93
5. Step 5: Solve for x
   x = 5,000,339.93/2,543.60
6. Step 6: Final answer
   x = 1,965.85