Finding the Fourth Proportional to 3,981.31, 5,494.32 and 2,302.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.31 : 5,494.32 = 2,302.55 : x
2. Step 2: Convert to fraction form
   3,981.31/5,494.32 = 2,302.55/x
3. Step 3: Cross multiply
   3,981.31x = 5,494.32 × 2,302.55
4. Step 4: Simplify right side
   3,981.31x = 12,650,935.00
5. Step 5: Solve for x
   x = 12,650,935.00/3,981.31
6. Step 6: Final answer
   x = 3,177.58