Finding the Fourth Proportional to 2,923.76, 4,386.22 and 1,074.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,923.76 : 4,386.22 = 1,074.89 : x
2. Step 2: Convert to fraction form
   2,923.76/4,386.22 = 1,074.89/x
3. Step 3: Cross multiply
   2,923.76x = 4,386.22 × 1,074.89
4. Step 4: Simplify right side
   2,923.76x = 4,714,676.71
5. Step 5: Solve for x
   x = 4,714,676.71/2,923.76
6. Step 6: Final answer
   x = 1,612.54