Finding the Fourth Proportional to 2,114.03, 3,171.05 and 653.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.03 : 3,171.05 = 653.15 : x
2. Step 2: Convert to fraction form
   2,114.03/3,171.05 = 653.15/x
3. Step 3: Cross multiply
   2,114.03x = 3,171.05 × 653.15
4. Step 4: Simplify right side
   2,114.03x = 2,071,171.31
5. Step 5: Solve for x
   x = 2,071,171.31/2,114.03
6. Step 6: Final answer
   x = 979.73