Finding the Fourth Proportional to 2,221.22, 3,065.40 and 1,337.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.22 : 3,065.40 = 1,337.30 : x
2. Step 2: Convert to fraction form
   2,221.22/3,065.40 = 1,337.30/x
3. Step 3: Cross multiply
   2,221.22x = 3,065.40 × 1,337.30
4. Step 4: Simplify right side
   2,221.22x = 4,099,359.42
5. Step 5: Solve for x
   x = 4,099,359.42/2,221.22
6. Step 6: Final answer
   x = 1,845.54