Finding the Fourth Proportional to 2,221.30, 3,064.16 and 1,336.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.30 : 3,064.16 = 1,336.56 : x
2. Step 2: Convert to fraction form
   2,221.30/3,064.16 = 1,336.56/x
3. Step 3: Cross multiply
   2,221.30x = 3,064.16 × 1,336.56
4. Step 4: Simplify right side
   2,221.30x = 4,095,433.69
5. Step 5: Solve for x
   x = 4,095,433.69/2,221.30
6. Step 6: Final answer
   x = 1,843.71