Finding the Fourth Proportional to 2,262.06, 3,120.74 and 1,317.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,262.06 : 3,120.74 = 1,317.71 : x
2. Step 2: Convert to fraction form
   2,262.06/3,120.74 = 1,317.71/x
3. Step 3: Cross multiply
   2,262.06x = 3,120.74 × 1,317.71
4. Step 4: Simplify right side
   2,262.06x = 4,112,230.31
5. Step 5: Solve for x
   x = 4,112,230.31/2,262.06
6. Step 6: Final answer
   x = 1,817.91