Finding the Fourth Proportional to 2,353.51, 3,247.86 and 1,305.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,353.51 : 3,247.86 = 1,305.57 : x
2. Step 2: Convert to fraction form
   2,353.51/3,247.86 = 1,305.57/x
3. Step 3: Cross multiply
   2,353.51x = 3,247.86 × 1,305.57
4. Step 4: Simplify right side
   2,353.51x = 4,240,308.58
5. Step 5: Solve for x
   x = 4,240,308.58/2,353.51
6. Step 6: Final answer
   x = 1,801.70