Finding the Fourth Proportional to 1,919.47, 2,648.04 and 1,255.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.47 : 2,648.04 = 1,255.16 : x
2. Step 2: Convert to fraction form
   1,919.47/2,648.04 = 1,255.16/x
3. Step 3: Cross multiply
   1,919.47x = 2,648.04 × 1,255.16
4. Step 4: Simplify right side
   1,919.47x = 3,323,713.89
5. Step 5: Solve for x
   x = 3,323,713.89/1,919.47
6. Step 6: Final answer
   x = 1,731.58