Finding the Fourth Proportional to 2,573.76, 3,551.78 and 1,394.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.76 : 3,551.78 = 1,394.85 : x
2. Step 2: Convert to fraction form
   2,573.76/3,551.78 = 1,394.85/x
3. Step 3: Cross multiply
   2,573.76x = 3,551.78 × 1,394.85
4. Step 4: Simplify right side
   2,573.76x = 4,954,200.33
5. Step 5: Solve for x
   x = 4,954,200.33/2,573.76
6. Step 6: Final answer
   x = 1,924.89