Finding the Fourth Proportional to 3,109.77, 4,641.90 and 2,740.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.77 : 4,641.90 = 2,740.72 : x
2. Step 2: Convert to fraction form
   3,109.77/4,641.90 = 2,740.72/x
3. Step 3: Cross multiply
   3,109.77x = 4,641.90 × 2,740.72
4. Step 4: Simplify right side
   3,109.77x = 12,722,134.46
5. Step 5: Solve for x
   x = 12,722,134.46/3,109.77
6. Step 6: Final answer
   x = 4,091.03