Finding the Fourth Proportional to 2,086.95, 3,126.92 and 1,262.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.95 : 3,126.92 = 1,262.72 : x
2. Step 2: Convert to fraction form
   2,086.95/3,126.92 = 1,262.72/x
3. Step 3: Cross multiply
   2,086.95x = 3,126.92 × 1,262.72
4. Step 4: Simplify right side
   2,086.95x = 3,948,402.47
5. Step 5: Solve for x
   x = 3,948,402.47/2,086.95
6. Step 6: Final answer
   x = 1,891.95