Finding the Fourth Proportional to 2,716.64, 3,746.59 and 2,156.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,716.64 : 3,746.59 = 2,156.22 : x
2. Step 2: Convert to fraction form
   2,716.64/3,746.59 = 2,156.22/x
3. Step 3: Cross multiply
   2,716.64x = 3,746.59 × 2,156.22
4. Step 4: Simplify right side
   2,716.64x = 8,078,466.90
5. Step 5: Solve for x
   x = 8,078,466.90/2,716.64
6. Step 6: Final answer
   x = 2,973.70