Finding the Fourth Proportional to 2,388.37, 3,580.41 and 927.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.37 : 3,580.41 = 927.17 : x
2. Step 2: Convert to fraction form
   2,388.37/3,580.41 = 927.17/x
3. Step 3: Cross multiply
   2,388.37x = 3,580.41 × 927.17
4. Step 4: Simplify right side
   2,388.37x = 3,319,648.74
5. Step 5: Solve for x
   x = 3,319,648.74/2,388.37
6. Step 6: Final answer
   x = 1,389.93