Finding the Fourth Proportional to 2,774.69, 4,161.55 and 925.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.69 : 4,161.55 = 925.59 : x
2. Step 2: Convert to fraction form
   2,774.69/4,161.55 = 925.59/x
3. Step 3: Cross multiply
   2,774.69x = 4,161.55 × 925.59
4. Step 4: Simplify right side
   2,774.69x = 3,851,889.06
5. Step 5: Solve for x
   x = 3,851,889.06/2,774.69
6. Step 6: Final answer
   x = 1,388.22