Finding the Fourth Proportional to 2,742.88, 3,784.96 and 1,563.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,742.88 : 3,784.96 = 1,563.72 : x
2. Step 2: Convert to fraction form
   2,742.88/3,784.96 = 1,563.72/x
3. Step 3: Cross multiply
   2,742.88x = 3,784.96 × 1,563.72
4. Step 4: Simplify right side
   2,742.88x = 5,918,617.65
5. Step 5: Solve for x
   x = 5,918,617.65/2,742.88
6. Step 6: Final answer
   x = 2,157.81