Finding the Fourth Proportional to 2,114.98, 3,172.73 and 654.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.98 : 3,172.73 = 654.25 : x
2. Step 2: Convert to fraction form
   2,114.98/3,172.73 = 654.25/x
3. Step 3: Cross multiply
   2,114.98x = 3,172.73 × 654.25
4. Step 4: Simplify right side
   2,114.98x = 2,075,758.60
5. Step 5: Solve for x
   x = 2,075,758.60/2,114.98
6. Step 6: Final answer
   x = 981.46