Finding the Fourth Proportional to 2,219.67, 3,062.88 and 1,275.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.67 : 3,062.88 = 1,275.48 : x
2. Step 2: Convert to fraction form
   2,219.67/3,062.88 = 1,275.48/x
3. Step 3: Cross multiply
   2,219.67x = 3,062.88 × 1,275.48
4. Step 4: Simplify right side
   2,219.67x = 3,906,642.18
5. Step 5: Solve for x
   x = 3,906,642.18/2,219.67
6. Step 6: Final answer
   x = 1,760.01