Finding the Fourth Proportional to 1,132.53, 1,688.90 and 1,091.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.53 : 1,688.90 = 1,091.52 : x
2. Step 2: Convert to fraction form
   1,132.53/1,688.90 = 1,091.52/x
3. Step 3: Cross multiply
   1,132.53x = 1,688.90 × 1,091.52
4. Step 4: Simplify right side
   1,132.53x = 1,843,462.67
5. Step 5: Solve for x
   x = 1,843,462.67/1,132.53
6. Step 6: Final answer
   x = 1,627.74