Finding the Fourth Proportional to 5,687.69, 8,530.83 and 1,528.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,687.69 : 8,530.83 = 1,528.02 : x
2. Step 2: Convert to fraction form
   5,687.69/8,530.83 = 1,528.02/x
3. Step 3: Cross multiply
   5,687.69x = 8,530.83 × 1,528.02
4. Step 4: Simplify right side
   5,687.69x = 13,035,278.86
5. Step 5: Solve for x
   x = 13,035,278.86/5,687.69
6. Step 6: Final answer
   x = 2,291.84