Finding the Fourth Proportional to 2,598.99, 3,586.59 and 1,420.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.99 : 3,586.59 = 1,420.05 : x
2. Step 2: Convert to fraction form
   2,598.99/3,586.59 = 1,420.05/x
3. Step 3: Cross multiply
   2,598.99x = 3,586.59 × 1,420.05
4. Step 4: Simplify right side
   2,598.99x = 5,093,137.13
5. Step 5: Solve for x
   x = 5,093,137.13/2,598.99
6. Step 6: Final answer
   x = 1,959.66