Finding the Fourth Proportional to 2,538.07, 3,501.51 and 1,687.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.07 : 3,501.51 = 1,687.73 : x
2. Step 2: Convert to fraction form
   2,538.07/3,501.51 = 1,687.73/x
3. Step 3: Cross multiply
   2,538.07x = 3,501.51 × 1,687.73
4. Step 4: Simplify right side
   2,538.07x = 5,909,603.47
5. Step 5: Solve for x
   x = 5,909,603.47/2,538.07
6. Step 6: Final answer
   x = 2,328.38