Finding the Fourth Proportional to 2,155.10, 3,232.59 and 1,424.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.10 : 3,232.59 = 1,424.49 : x
2. Step 2: Convert to fraction form
   2,155.10/3,232.59 = 1,424.49/x
3. Step 3: Cross multiply
   2,155.10x = 3,232.59 × 1,424.49
4. Step 4: Simplify right side
   2,155.10x = 4,604,792.13
5. Step 5: Solve for x
   x = 4,604,792.13/2,155.10
6. Step 6: Final answer
   x = 2,136.70