Finding the Fourth Proportional to 2,320.02, 3,477.57 and 1,086.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.02 : 3,477.57 = 1,086.39 : x
2. Step 2: Convert to fraction form
   2,320.02/3,477.57 = 1,086.39/x
3. Step 3: Cross multiply
   2,320.02x = 3,477.57 × 1,086.39
4. Step 4: Simplify right side
   2,320.02x = 3,777,997.27
5. Step 5: Solve for x
   x = 3,777,997.27/2,320.02
6. Step 6: Final answer
   x = 1,628.43