Finding the Fourth Proportional to 2,569.18, 3,854.61 and 925.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.18 : 3,854.61 = 925.42 : x
2. Step 2: Convert to fraction form
   2,569.18/3,854.61 = 925.42/x
3. Step 3: Cross multiply
   2,569.18x = 3,854.61 × 925.42
4. Step 4: Simplify right side
   2,569.18x = 3,567,133.19
5. Step 5: Solve for x
   x = 3,567,133.19/2,569.18
6. Step 6: Final answer
   x = 1,388.43