Finding the Fourth Proportional to 2,599.28, 3,586.91 and 1,420.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.28 : 3,586.91 = 1,420.37 : x
2. Step 2: Convert to fraction form
   2,599.28/3,586.91 = 1,420.37/x
3. Step 3: Cross multiply
   2,599.28x = 3,586.91 × 1,420.37
4. Step 4: Simplify right side
   2,599.28x = 5,094,714.32
5. Step 5: Solve for x
   x = 5,094,714.32/2,599.28
6. Step 6: Final answer
   x = 1,960.05