Finding the Fourth Proportional to 2,068, 2,854.56 and 1,240

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068 : 2,854.56 = 1,240 : x
2. Step 2: Convert to fraction form
   2,068/2,854.56 = 1,240/x
3. Step 3: Cross multiply
   2,068x = 2,854.56 × 1,240
4. Step 4: Simplify right side
   2,068x = 3,539,654.40
5. Step 5: Solve for x
   x = 3,539,654.40/2,068
6. Step 6: Final answer
   x = 1,711.63