Finding the Fourth Proportional to 3,941.57, 5,438.76 and 2,263.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941.57 : 5,438.76 = 2,263.05 : x
2. Step 2: Convert to fraction form
   3,941.57/5,438.76 = 2,263.05/x
3. Step 3: Cross multiply
   3,941.57x = 5,438.76 × 2,263.05
4. Step 4: Simplify right side
   3,941.57x = 12,308,185.82
5. Step 5: Solve for x
   x = 12,308,185.82/3,941.57
6. Step 6: Final answer
   x = 3,122.66