Finding the Fourth Proportional to 2,086.63, 3,123.70 and 1,262.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.63 : 3,123.70 = 1,262.41 : x
2. Step 2: Convert to fraction form
   2,086.63/3,123.70 = 1,262.41/x
3. Step 3: Cross multiply
   2,086.63x = 3,123.70 × 1,262.41
4. Step 4: Simplify right side
   2,086.63x = 3,943,390.12
5. Step 5: Solve for x
   x = 3,943,390.12/2,086.63
6. Step 6: Final answer
   x = 1,889.84