Finding the Fourth Proportional to 2,588.88, 3,880.28 and 1,356.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.88 : 3,880.28 = 1,356.87 : x
2. Step 2: Convert to fraction form
   2,588.88/3,880.28 = 1,356.87/x
3. Step 3: Cross multiply
   2,588.88x = 3,880.28 × 1,356.87
4. Step 4: Simplify right side
   2,588.88x = 5,265,022.43
5. Step 5: Solve for x
   x = 5,265,022.43/2,588.88
6. Step 6: Final answer
   x = 2,033.71