Finding the Fourth Proportional to 3,588.18, 4,949.55 and 2,188.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,588.18 : 4,949.55 = 2,188.50 : x
2. Step 2: Convert to fraction form
   3,588.18/4,949.55 = 2,188.50/x
3. Step 3: Cross multiply
   3,588.18x = 4,949.55 × 2,188.50
4. Step 4: Simplify right side
   3,588.18x = 10,832,090.18
5. Step 5: Solve for x
   x = 10,832,090.18/3,588.18
6. Step 6: Final answer
   x = 3,018.83