Finding the Fourth Proportional to 2,443.87, 3,666.48 and 1,056.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.87 : 3,666.48 = 1,056.61 : x
2. Step 2: Convert to fraction form
   2,443.87/3,666.48 = 1,056.61/x
3. Step 3: Cross multiply
   2,443.87x = 3,666.48 × 1,056.61
4. Step 4: Simplify right side
   2,443.87x = 3,874,039.43
5. Step 5: Solve for x
   x = 3,874,039.43/2,443.87
6. Step 6: Final answer
   x = 1,585.21