Finding the Fourth Proportional to 2,348.63, 3,240.35 and 1,353.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,348.63 : 3,240.35 = 1,353.72 : x
2. Step 2: Convert to fraction form
   2,348.63/3,240.35 = 1,353.72/x
3. Step 3: Cross multiply
   2,348.63x = 3,240.35 × 1,353.72
4. Step 4: Simplify right side
   2,348.63x = 4,386,520.16
5. Step 5: Solve for x
   x = 4,386,520.16/2,348.63
6. Step 6: Final answer
   x = 1,867.69