Finding the Fourth Proportional to 2,311.89, 3,464.34 and 1,077.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.89 : 3,464.34 = 1,077.85 : x
2. Step 2: Convert to fraction form
   2,311.89/3,464.34 = 1,077.85/x
3. Step 3: Cross multiply
   2,311.89x = 3,464.34 × 1,077.85
4. Step 4: Simplify right side
   2,311.89x = 3,734,038.87
5. Step 5: Solve for x
   x = 3,734,038.87/2,311.89
6. Step 6: Final answer
   x = 1,615.15