Finding the Fourth Proportional to 3,715.25, 5,127.84 and 2,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.25 : 5,127.84 = 2,223.50 : x
2. Step 2: Convert to fraction form
   3,715.25/5,127.84 = 2,223.50/x
3. Step 3: Cross multiply
   3,715.25x = 5,127.84 × 2,223.50
4. Step 4: Simplify right side
   3,715.25x = 11,401,726.60
5. Step 5: Solve for x
   x = 11,401,726.60/3,715.25
6. Step 6: Final answer
   x = 3,068.90