Finding the Fourth Proportional to 2,662.61, 3,673.65 and 1,543.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.61 : 3,673.65 = 1,543.32 : x
2. Step 2: Convert to fraction form
   2,662.61/3,673.65 = 1,543.32/x
3. Step 3: Cross multiply
   2,662.61x = 3,673.65 × 1,543.32
4. Step 4: Simplify right side
   2,662.61x = 5,669,623.31
5. Step 5: Solve for x
   x = 5,669,623.31/2,662.61
6. Step 6: Final answer
   x = 2,129.35