Finding the Fourth Proportional to 2,599.68, 3,587.52 and 1,420.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.68 : 3,587.52 = 1,420.73 : x
2. Step 2: Convert to fraction form
   2,599.68/3,587.52 = 1,420.73/x
3. Step 3: Cross multiply
   2,599.68x = 3,587.52 × 1,420.73
4. Step 4: Simplify right side
   2,599.68x = 5,096,897.29
5. Step 5: Solve for x
   x = 5,096,897.29/2,599.68
6. Step 6: Final answer
   x = 1,960.59