Finding the Fourth Proportional to 2,877.86, 4,320.46 and 2,447.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.86 : 4,320.46 = 2,447.76 : x
2. Step 2: Convert to fraction form
   2,877.86/4,320.46 = 2,447.76/x
3. Step 3: Cross multiply
   2,877.86x = 4,320.46 × 2,447.76
4. Step 4: Simplify right side
   2,877.86x = 10,575,449.17
5. Step 5: Solve for x
   x = 10,575,449.17/2,877.86
6. Step 6: Final answer
   x = 3,674.76