Finding the Fourth Proportional to 2,191.68, 3,024.72 and 1,260

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.68 : 3,024.72 = 1,260 : x
2. Step 2: Convert to fraction form
   2,191.68/3,024.72 = 1,260/x
3. Step 3: Cross multiply
   2,191.68x = 3,024.72 × 1,260
4. Step 4: Simplify right side
   2,191.68x = 3,811,147.20
5. Step 5: Solve for x
   x = 3,811,147.20/2,191.68
6. Step 6: Final answer
   x = 1,738.92