Finding the Fourth Proportional to 2,109.53, 3,165.20 and 1,014.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.53 : 3,165.20 = 1,014.21 : x
2. Step 2: Convert to fraction form
   2,109.53/3,165.20 = 1,014.21/x
3. Step 3: Cross multiply
   2,109.53x = 3,165.20 × 1,014.21
4. Step 4: Simplify right side
   2,109.53x = 3,210,172.42
5. Step 5: Solve for x
   x = 3,210,172.42/2,109.53
6. Step 6: Final answer
   x = 1,521.75