Finding the Fourth Proportional to 2,217.82, 3,060.50 and 1,309.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.82 : 3,060.50 = 1,309.32 : x
2. Step 2: Convert to fraction form
   2,217.82/3,060.50 = 1,309.32/x
3. Step 3: Cross multiply
   2,217.82x = 3,060.50 × 1,309.32
4. Step 4: Simplify right side
   2,217.82x = 4,007,173.86
5. Step 5: Solve for x
   x = 4,007,173.86/2,217.82
6. Step 6: Final answer
   x = 1,806.81