Finding the Fourth Proportional to 5,108.77, 7,662.58 and 1,411.53

Step by Step Solution

1. Step 1: Write the proportion equation
   5,108.77 : 7,662.58 = 1,411.53 : x
2. Step 2: Convert to fraction form
   5,108.77/7,662.58 = 1,411.53/x
3. Step 3: Cross multiply
   5,108.77x = 7,662.58 × 1,411.53
4. Step 4: Simplify right side
   5,108.77x = 10,815,961.55
5. Step 5: Solve for x
   x = 10,815,961.55/5,108.77
6. Step 6: Final answer
   x = 2,117.14