Finding the Fourth Proportional to 1,132.52, 1,690.38 and 1,104.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.52 : 1,690.38 = 1,104.87 : x
2. Step 2: Convert to fraction form
   1,132.52/1,690.38 = 1,104.87/x
3. Step 3: Cross multiply
   1,132.52x = 1,690.38 × 1,104.87
4. Step 4: Simplify right side
   1,132.52x = 1,867,650.15
5. Step 5: Solve for x
   x = 1,867,650.15/1,132.52
6. Step 6: Final answer
   x = 1,649.12