Finding the Fourth Proportional to 2,573.72, 3,551.74 and 1,394.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.72 : 3,551.74 = 1,394.79 : x
2. Step 2: Convert to fraction form
   2,573.72/3,551.74 = 1,394.79/x
3. Step 3: Cross multiply
   2,573.72x = 3,551.74 × 1,394.79
4. Step 4: Simplify right side
   2,573.72x = 4,953,931.43
5. Step 5: Solve for x
   x = 4,953,931.43/2,573.72
6. Step 6: Final answer
   x = 1,924.81