Finding the Fourth Proportional to 2,903.10, 4,354.71 and 711.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,903.10 : 4,354.71 = 711.85 : x
2. Step 2: Convert to fraction form
   2,903.10/4,354.71 = 711.85/x
3. Step 3: Cross multiply
   2,903.10x = 4,354.71 × 711.85
4. Step 4: Simplify right side
   2,903.10x = 3,099,900.31
5. Step 5: Solve for x
   x = 3,099,900.31/2,903.10
6. Step 6: Final answer
   x = 1,067.79