Finding the Fourth Proportional to 2,356.65, 3,251.81 and 1,361.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.65 : 3,251.81 = 1,361.74 : x
2. Step 2: Convert to fraction form
   2,356.65/3,251.81 = 1,361.74/x
3. Step 3: Cross multiply
   2,356.65x = 3,251.81 × 1,361.74
4. Step 4: Simplify right side
   2,356.65x = 4,428,111.48
5. Step 5: Solve for x
   x = 4,428,111.48/2,356.65
6. Step 6: Final answer
   x = 1,878.99