Finding the Fourth Proportional to 2,722.10, 3,758.61 and 2,091.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.10 : 3,758.61 = 2,091.63 : x
2. Step 2: Convert to fraction form
   2,722.10/3,758.61 = 2,091.63/x
3. Step 3: Cross multiply
   2,722.10x = 3,758.61 × 2,091.63
4. Step 4: Simplify right side
   2,722.10x = 7,861,621.43
5. Step 5: Solve for x
   x = 7,861,621.43/2,722.10
6. Step 6: Final answer
   x = 2,888.07