Finding the Fourth Proportional to 2,599.34, 3,587.09 and 1,420.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.34 : 3,587.09 = 1,420.43 : x
2. Step 2: Convert to fraction form
   2,599.34/3,587.09 = 1,420.43/x
3. Step 3: Cross multiply
   2,599.34x = 3,587.09 × 1,420.43
4. Step 4: Simplify right side
   2,599.34x = 5,095,217.37
5. Step 5: Solve for x
   x = 5,095,217.37/2,599.34
6. Step 6: Final answer
   x = 1,960.20