Finding the Fourth Proportional to 2,218.93, 3,061.76 and 1,322.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.93 : 3,061.76 = 1,322.39 : x
2. Step 2: Convert to fraction form
   2,218.93/3,061.76 = 1,322.39/x
3. Step 3: Cross multiply
   2,218.93x = 3,061.76 × 1,322.39
4. Step 4: Simplify right side
   2,218.93x = 4,048,841.85
5. Step 5: Solve for x
   x = 4,048,841.85/2,218.93
6. Step 6: Final answer
   x = 1,824.68