Finding the Fourth Proportional to 2,903.16, 4,354.71 and 711.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,903.16 : 4,354.71 = 711.87 : x
2. Step 2: Convert to fraction form
   2,903.16/4,354.71 = 711.87/x
3. Step 3: Cross multiply
   2,903.16x = 4,354.71 × 711.87
4. Step 4: Simplify right side
   2,903.16x = 3,099,987.41
5. Step 5: Solve for x
   x = 3,099,987.41/2,903.16
6. Step 6: Final answer
   x = 1,067.80