Finding the Fourth Proportional to 2,356.39, 3,251.57 and 1,361.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.39 : 3,251.57 = 1,361.99 : x
2. Step 2: Convert to fraction form
   2,356.39/3,251.57 = 1,361.99/x
3. Step 3: Cross multiply
   2,356.39x = 3,251.57 × 1,361.99
4. Step 4: Simplify right side
   2,356.39x = 4,428,601.10
5. Step 5: Solve for x
   x = 4,428,601.10/2,356.39
6. Step 6: Final answer
   x = 1,879.40