Finding the Fourth Proportional to 3,761.72, 5,191.66 and 2,106.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,761.72 : 5,191.66 = 2,106.04 : x
2. Step 2: Convert to fraction form
   3,761.72/5,191.66 = 2,106.04/x
3. Step 3: Cross multiply
   3,761.72x = 5,191.66 × 2,106.04
4. Step 4: Simplify right side
   3,761.72x = 10,933,843.63
5. Step 5: Solve for x
   x = 10,933,843.63/3,761.72
6. Step 6: Final answer
   x = 2,906.61