Finding the Fourth Proportional to 5,150.52, 7,726.98 and 1,687.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,150.52 : 7,726.98 = 1,687.56 : x
2. Step 2: Convert to fraction form
   5,150.52/7,726.98 = 1,687.56/x
3. Step 3: Cross multiply
   5,150.52x = 7,726.98 × 1,687.56
4. Step 4: Simplify right side
   5,150.52x = 13,039,742.37
5. Step 5: Solve for x
   x = 13,039,742.37/5,150.52
6. Step 6: Final answer
   x = 2,531.73