Finding the Fourth Proportional to 2,015.57, 3,023.34 and 1,347.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.57 : 3,023.34 = 1,347.05 : x
2. Step 2: Convert to fraction form
   2,015.57/3,023.34 = 1,347.05/x
3. Step 3: Cross multiply
   2,015.57x = 3,023.34 × 1,347.05
4. Step 4: Simplify right side
   2,015.57x = 4,072,590.15
5. Step 5: Solve for x
   x = 4,072,590.15/2,015.57
6. Step 6: Final answer
   x = 2,020.56