Finding the Fourth Proportional to 3,985.83, 5,976.34 and 1,520.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.83 : 5,976.34 = 1,520.83 : x
2. Step 2: Convert to fraction form
   3,985.83/5,976.34 = 1,520.83/x
3. Step 3: Cross multiply
   3,985.83x = 5,976.34 × 1,520.83
4. Step 4: Simplify right side
   3,985.83x = 9,088,997.16
5. Step 5: Solve for x
   x = 9,088,997.16/3,985.83
6. Step 6: Final answer
   x = 2,280.33