Finding the Fourth Proportional to 3,659.78, 5,489.92 and 1,062.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659.78 : 5,489.92 = 1,062.50 : x
2. Step 2: Convert to fraction form
   3,659.78/5,489.92 = 1,062.50/x
3. Step 3: Cross multiply
   3,659.78x = 5,489.92 × 1,062.50
4. Step 4: Simplify right side
   3,659.78x = 5,833,040
5. Step 5: Solve for x
   x = 5,833,040/3,659.78
6. Step 6: Final answer
   x = 1,593.82