Finding the Fourth Proportional to 2,348.72, 3,240.50 and 1,353.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,348.72 : 3,240.50 = 1,353.87 : x
2. Step 2: Convert to fraction form
   2,348.72/3,240.50 = 1,353.87/x
3. Step 3: Cross multiply
   2,348.72x = 3,240.50 × 1,353.87
4. Step 4: Simplify right side
   2,348.72x = 4,387,199.53
5. Step 5: Solve for x
   x = 4,387,199.53/2,348.72
6. Step 6: Final answer
   x = 1,867.91