Finding the Fourth Proportional to 1,132.16, 1,696.34 and 1,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.16 : 1,696.34 = 1,089.50 : x
2. Step 2: Convert to fraction form
   1,132.16/1,696.34 = 1,089.50/x
3. Step 3: Cross multiply
   1,132.16x = 1,696.34 × 1,089.50
4. Step 4: Simplify right side
   1,132.16x = 1,848,162.43
5. Step 5: Solve for x
   x = 1,848,162.43/1,132.16
6. Step 6: Final answer
   x = 1,632.42