Finding the Fourth Proportional to 1,155.30, 1,601.01 and 1,133.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.30 : 1,601.01 = 1,133.42 : x
2. Step 2: Convert to fraction form
   1,155.30/1,601.01 = 1,133.42/x
3. Step 3: Cross multiply
   1,155.30x = 1,601.01 × 1,133.42
4. Step 4: Simplify right side
   1,155.30x = 1,814,616.75
5. Step 5: Solve for x
   x = 1,814,616.75/1,155.30
6. Step 6: Final answer
   x = 1,570.69