Finding the Fourth Proportional to 3,649.12, 5,035.98 and 2,077.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,649.12 : 5,035.98 = 2,077.72 : x
2. Step 2: Convert to fraction form
   3,649.12/5,035.98 = 2,077.72/x
3. Step 3: Cross multiply
   3,649.12x = 5,035.98 × 2,077.72
4. Step 4: Simplify right side
   3,649.12x = 10,463,356.37
5. Step 5: Solve for x
   x = 10,463,356.37/3,649.12
6. Step 6: Final answer
   x = 2,867.36