Finding the Fourth Proportional to 2,672.72, 3,688.48 and 1,610.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.72 : 3,688.48 = 1,610.72 : x
2. Step 2: Convert to fraction form
   2,672.72/3,688.48 = 1,610.72/x
3. Step 3: Cross multiply
   2,672.72x = 3,688.48 × 1,610.72
4. Step 4: Simplify right side
   2,672.72x = 5,941,108.51
5. Step 5: Solve for x
   x = 5,941,108.51/2,672.72
6. Step 6: Final answer
   x = 2,222.87