Finding the Fourth Proportional to 2,591.98, 3,889.12 and 1,359.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.98 : 3,889.12 = 1,359.10 : x
2. Step 2: Convert to fraction form
   2,591.98/3,889.12 = 1,359.10/x
3. Step 3: Cross multiply
   2,591.98x = 3,889.12 × 1,359.10
4. Step 4: Simplify right side
   2,591.98x = 5,285,702.99
5. Step 5: Solve for x
   x = 5,285,702.99/2,591.98
6. Step 6: Final answer
   x = 2,039.25