Finding the Fourth Proportional to 2,155.01, 3,230.69 and 1,114.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.01 : 3,230.69 = 1,114.56 : x
2. Step 2: Convert to fraction form
   2,155.01/3,230.69 = 1,114.56/x
3. Step 3: Cross multiply
   2,155.01x = 3,230.69 × 1,114.56
4. Step 4: Simplify right side
   2,155.01x = 3,600,792.27
5. Step 5: Solve for x
   x = 3,600,792.27/2,155.01
6. Step 6: Final answer
   x = 1,670.90