Finding the Fourth Proportional to 3,687.88, 5,090.50 and 2,196.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687.88 : 5,090.50 = 2,196.26 : x
2. Step 2: Convert to fraction form
   3,687.88/5,090.50 = 2,196.26/x
3. Step 3: Cross multiply
   3,687.88x = 5,090.50 × 2,196.26
4. Step 4: Simplify right side
   3,687.88x = 11,180,061.53
5. Step 5: Solve for x
   x = 11,180,061.53/3,687.88
6. Step 6: Final answer
   x = 3,031.57