Finding the Fourth Proportional to 2,114.34, 3,171.82 and 653.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.34 : 3,171.82 = 653.61 : x
2. Step 2: Convert to fraction form
   2,114.34/3,171.82 = 653.61/x
3. Step 3: Cross multiply
   2,114.34x = 3,171.82 × 653.61
4. Step 4: Simplify right side
   2,114.34x = 2,073,132.45
5. Step 5: Solve for x
   x = 2,073,132.45/2,114.34
6. Step 6: Final answer
   x = 980.51