Finding the Fourth Proportional to 2,569.74, 3,853.60 and 925.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.74 : 3,853.60 = 925.71 : x
2. Step 2: Convert to fraction form
   2,569.74/3,853.60 = 925.71/x
3. Step 3: Cross multiply
   2,569.74x = 3,853.60 × 925.71
4. Step 4: Simplify right side
   2,569.74x = 3,567,311.43
5. Step 5: Solve for x
   x = 3,567,311.43/2,569.74
6. Step 6: Final answer
   x = 1,388.20