Finding the Fourth Proportional to 2,219.43, 3,062.61 and 1,275.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.43 : 3,062.61 = 1,275.12 : x
2. Step 2: Convert to fraction form
   2,219.43/3,062.61 = 1,275.12/x
3. Step 3: Cross multiply
   2,219.43x = 3,062.61 × 1,275.12
4. Step 4: Simplify right side
   2,219.43x = 3,905,195.26
5. Step 5: Solve for x
   x = 3,905,195.26/2,219.43
6. Step 6: Final answer
   x = 1,759.55