Finding the Fourth Proportional to 2,191.28, 3,023.51 and 1,527.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.28 : 3,023.51 = 1,527.89 : x
2. Step 2: Convert to fraction form
   2,191.28/3,023.51 = 1,527.89/x
3. Step 3: Cross multiply
   2,191.28x = 3,023.51 × 1,527.89
4. Step 4: Simplify right side
   2,191.28x = 4,619,567.94
5. Step 5: Solve for x
   x = 4,619,567.94/2,191.28
6. Step 6: Final answer
   x = 2,108.16