Finding the Fourth Proportional to 2,662.50, 3,674.78 and 1,543.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.50 : 3,674.78 = 1,543.68 : x
2. Step 2: Convert to fraction form
   2,662.50/3,674.78 = 1,543.68/x
3. Step 3: Cross multiply
   2,662.50x = 3,674.78 × 1,543.68
4. Step 4: Simplify right side
   2,662.50x = 5,672,676.67
5. Step 5: Solve for x
   x = 5,672,676.67/2,662.50
6. Step 6: Final answer
   x = 2,130.58