Finding the Fourth Proportional to 2,375.48, 3,278.17 and 1,298.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,375.48 : 3,278.17 = 1,298.75 : x
2. Step 2: Convert to fraction form
   2,375.48/3,278.17 = 1,298.75/x
3. Step 3: Cross multiply
   2,375.48x = 3,278.17 × 1,298.75
4. Step 4: Simplify right side
   2,375.48x = 4,257,534.73
5. Step 5: Solve for x
   x = 4,257,534.73/2,375.48
6. Step 6: Final answer
   x = 1,792.28