Finding the Fourth Proportional to 2,114.58, 3,172.55 and 1,019.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.58 : 3,172.55 = 1,019.06 : x
2. Step 2: Convert to fraction form
   2,114.58/3,172.55 = 1,019.06/x
3. Step 3: Cross multiply
   2,114.58x = 3,172.55 × 1,019.06
4. Step 4: Simplify right side
   2,114.58x = 3,233,018.80
5. Step 5: Solve for x
   x = 3,233,018.80/2,114.58
6. Step 6: Final answer
   x = 1,528.92