Finding the Fourth Proportional to 2,854.41, 4,281.83 and 906.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854.41 : 4,281.83 = 906.63 : x
2. Step 2: Convert to fraction form
   2,854.41/4,281.83 = 906.63/x
3. Step 3: Cross multiply
   2,854.41x = 4,281.83 × 906.63
4. Step 4: Simplify right side
   2,854.41x = 3,882,018.34
5. Step 5: Solve for x
   x = 3,882,018.34/2,854.41
6. Step 6: Final answer
   x = 1,360.01