Finding the Fourth Proportional to 2,114.31, 3,157.42 and 2,091.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.31 : 3,157.42 = 2,091.43 : x
2. Step 2: Convert to fraction form
   2,114.31/3,157.42 = 2,091.43/x
3. Step 3: Cross multiply
   2,114.31x = 3,157.42 × 2,091.43
4. Step 4: Simplify right side
   2,114.31x = 6,603,509.79
5. Step 5: Solve for x
   x = 6,603,509.79/2,114.31
6. Step 6: Final answer
   x = 3,123.25