Finding the Fourth Proportional to 2,925.72, 4,387.98 and 1,281.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,925.72 : 4,387.98 = 1,281.36 : x
2. Step 2: Convert to fraction form
   2,925.72/4,387.98 = 1,281.36/x
3. Step 3: Cross multiply
   2,925.72x = 4,387.98 × 1,281.36
4. Step 4: Simplify right side
   2,925.72x = 5,622,582.05
5. Step 5: Solve for x
   x = 5,622,582.05/2,925.72
6. Step 6: Final answer
   x = 1,921.78