Finding the Fourth Proportional to 5,019.83, 7,530.63 and 1,687.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,019.83 : 7,530.63 = 1,687.76 : x
2. Step 2: Convert to fraction form
   5,019.83/7,530.63 = 1,687.76/x
3. Step 3: Cross multiply
   5,019.83x = 7,530.63 × 1,687.76
4. Step 4: Simplify right side
   5,019.83x = 12,709,914.92
5. Step 5: Solve for x
   x = 12,709,914.92/5,019.83
6. Step 6: Final answer
   x = 2,531.94