Finding the Fourth Proportional to 2,114.58, 2,919.28 and 1,275.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.58 : 2,919.28 = 1,275.48 : x
2. Step 2: Convert to fraction form
   2,114.58/2,919.28 = 1,275.48/x
3. Step 3: Cross multiply
   2,114.58x = 2,919.28 × 1,275.48
4. Step 4: Simplify right side
   2,114.58x = 3,723,483.25
5. Step 5: Solve for x
   x = 3,723,483.25/2,114.58
6. Step 6: Final answer
   x = 1,760.86