Finding the Fourth Proportional to 2,310.43, 3,188.38 and 1,262.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.43 : 3,188.38 = 1,262.49 : x
2. Step 2: Convert to fraction form
   2,310.43/3,188.38 = 1,262.49/x
3. Step 3: Cross multiply
   2,310.43x = 3,188.38 × 1,262.49
4. Step 4: Simplify right side
   2,310.43x = 4,025,294.71
5. Step 5: Solve for x
   x = 4,025,294.71/2,310.43
6. Step 6: Final answer
   x = 1,742.23