Finding the Fourth Proportional to 2,672.86, 3,688.52 and 1,553.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.86 : 3,688.52 = 1,553.86 : x
2. Step 2: Convert to fraction form
   2,672.86/3,688.52 = 1,553.86/x
3. Step 3: Cross multiply
   2,672.86x = 3,688.52 × 1,553.86
4. Step 4: Simplify right side
   2,672.86x = 5,731,443.69
5. Step 5: Solve for x
   x = 5,731,443.69/2,672.86
6. Step 6: Final answer
   x = 2,144.31