Finding the Fourth Proportional to 2,543.64, 3,510.24 and 1,424.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.64 : 3,510.24 = 1,424.72 : x
2. Step 2: Convert to fraction form
   2,543.64/3,510.24 = 1,424.72/x
3. Step 3: Cross multiply
   2,543.64x = 3,510.24 × 1,424.72
4. Step 4: Simplify right side
   2,543.64x = 5,001,109.13
5. Step 5: Solve for x
   x = 5,001,109.13/2,543.64
6. Step 6: Final answer
   x = 1,966.12