Finding the Fourth Proportional to 2,716.34, 3,748.29 and 2,158.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,716.34 : 3,748.29 = 2,158.16 : x
2. Step 2: Convert to fraction form
   2,716.34/3,748.29 = 2,158.16/x
3. Step 3: Cross multiply
   2,716.34x = 3,748.29 × 2,158.16
4. Step 4: Simplify right side
   2,716.34x = 8,089,409.55
5. Step 5: Solve for x
   x = 8,089,409.55/2,716.34
6. Step 6: Final answer
   x = 2,978.05