Finding the Fourth Proportional to 3,451.86, 5,180.37 and 2,529.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451.86 : 5,180.37 = 2,529.76 : x
2. Step 2: Convert to fraction form
   3,451.86/5,180.37 = 2,529.76/x
3. Step 3: Cross multiply
   3,451.86x = 5,180.37 × 2,529.76
4. Step 4: Simplify right side
   3,451.86x = 13,105,092.81
5. Step 5: Solve for x
   x = 13,105,092.81/3,451.86
6. Step 6: Final answer
   x = 3,796.54