Finding the Fourth Proportional to 2,426.82, 3,640.74 and 1,387.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.82 : 3,640.74 = 1,387.32 : x
2. Step 2: Convert to fraction form
   2,426.82/3,640.74 = 1,387.32/x
3. Step 3: Cross multiply
   2,426.82x = 3,640.74 × 1,387.32
4. Step 4: Simplify right side
   2,426.82x = 5,050,871.42
5. Step 5: Solve for x
   x = 5,050,871.42/2,426.82
6. Step 6: Final answer
   x = 2,081.27