Finding the Fourth Proportional to 2,310.38, 3,188.34 and 1,262.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,310.38 : 3,188.34 = 1,262.46 : x
2. Step 2: Convert to fraction form
   2,310.38/3,188.34 = 1,262.46/x
3. Step 3: Cross multiply
   2,310.38x = 3,188.34 × 1,262.46
4. Step 4: Simplify right side
   2,310.38x = 4,025,151.72
5. Step 5: Solve for x
   x = 4,025,151.72/2,310.38
6. Step 6: Final answer
   x = 1,742.21