Finding the Fourth Proportional to 1,358.82, 1,876.50 and 1,161.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.82 : 1,876.50 = 1,161.18 : x
2. Step 2: Convert to fraction form
   1,358.82/1,876.50 = 1,161.18/x
3. Step 3: Cross multiply
   1,358.82x = 1,876.50 × 1,161.18
4. Step 4: Simplify right side
   1,358.82x = 2,178,954.27
5. Step 5: Solve for x
   x = 2,178,954.27/1,358.82
6. Step 6: Final answer
   x = 1,603.56