Finding the Fourth Proportional to 2,662.64, 3,674.38 and 1,543.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.64 : 3,674.38 = 1,543.56 : x
2. Step 2: Convert to fraction form
   2,662.64/3,674.38 = 1,543.56/x
3. Step 3: Cross multiply
   2,662.64x = 3,674.38 × 1,543.56
4. Step 4: Simplify right side
   2,662.64x = 5,671,611.25
5. Step 5: Solve for x
   x = 5,671,611.25/2,662.64
6. Step 6: Final answer
   x = 2,130.07