Finding the Fourth Proportional to 2,925.42, 4,387.06 and 1,281.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,925.42 : 4,387.06 = 1,281.12 : x
2. Step 2: Convert to fraction form
   2,925.42/4,387.06 = 1,281.12/x
3. Step 3: Cross multiply
   2,925.42x = 4,387.06 × 1,281.12
4. Step 4: Simplify right side
   2,925.42x = 5,620,350.31
5. Step 5: Solve for x
   x = 5,620,350.31/2,925.42
6. Step 6: Final answer
   x = 1,921.21