Finding the Fourth Proportional to 2,335.53, 3,222.78 and 1,340.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,335.53 : 3,222.78 = 1,340.79 : x
2. Step 2: Convert to fraction form
   2,335.53/3,222.78 = 1,340.79/x
3. Step 3: Cross multiply
   2,335.53x = 3,222.78 × 1,340.79
4. Step 4: Simplify right side
   2,335.53x = 4,321,071.20
5. Step 5: Solve for x
   x = 4,321,071.20/2,335.53
6. Step 6: Final answer
   x = 1,850.15