Finding the Fourth Proportional to 1,189.03, 1,649.82 and 1,155.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189.03 : 1,649.82 = 1,155.01 : x
2. Step 2: Convert to fraction form
   1,189.03/1,649.82 = 1,155.01/x
3. Step 3: Cross multiply
   1,189.03x = 1,649.82 × 1,155.01
4. Step 4: Simplify right side
   1,189.03x = 1,905,544.57
5. Step 5: Solve for x
   x = 1,905,544.57/1,189.03
6. Step 6: Final answer
   x = 1,602.61