Finding the Fourth Proportional to 2,216.34, 3,055.65 and 1,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.34 : 3,055.65 = 1,816.50 : x
2. Step 2: Convert to fraction form
   2,216.34/3,055.65 = 1,816.50/x
3. Step 3: Cross multiply
   2,216.34x = 3,055.65 × 1,816.50
4. Step 4: Simplify right side
   2,216.34x = 5,550,588.23
5. Step 5: Solve for x
   x = 5,550,588.23/2,216.34
6. Step 6: Final answer
   x = 2,504.39