Finding the Fourth Proportional to 2,019.72, 3,026.34 and 1,325.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.72 : 3,026.34 = 1,325.86 : x
2. Step 2: Convert to fraction form
   2,019.72/3,026.34 = 1,325.86/x
3. Step 3: Cross multiply
   2,019.72x = 3,026.34 × 1,325.86
4. Step 4: Simplify right side
   2,019.72x = 4,012,503.15
5. Step 5: Solve for x
   x = 4,012,503.15/2,019.72
6. Step 6: Final answer
   x = 1,986.66