Finding the Fourth Proportional to 2,517.62, 3,777.24 and 1,056.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.62 : 3,777.24 = 1,056.38 : x
2. Step 2: Convert to fraction form
   2,517.62/3,777.24 = 1,056.38/x
3. Step 3: Cross multiply
   2,517.62x = 3,777.24 × 1,056.38
4. Step 4: Simplify right side
   2,517.62x = 3,990,200.79
5. Step 5: Solve for x
   x = 3,990,200.79/2,517.62
6. Step 6: Final answer
   x = 1,584.91