Finding the Fourth Proportional to 3,672.80, 5,068.42 and 2,079.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.80 : 5,068.42 = 2,079.77 : x
2. Step 2: Convert to fraction form
   3,672.80/5,068.42 = 2,079.77/x
3. Step 3: Cross multiply
   3,672.80x = 5,068.42 × 2,079.77
4. Step 4: Simplify right side
   3,672.80x = 10,541,117.32
5. Step 5: Solve for x
   x = 10,541,117.32/3,672.80
6. Step 6: Final answer
   x = 2,870.05