Finding the Fourth Proportional to 2,088.45, 3,132.41 and 992.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.45 : 3,132.41 = 992.25 : x
2. Step 2: Convert to fraction form
   2,088.45/3,132.41 = 992.25/x
3. Step 3: Cross multiply
   2,088.45x = 3,132.41 × 992.25
4. Step 4: Simplify right side
   2,088.45x = 3,108,128.86
5. Step 5: Solve for x
   x = 3,108,128.86/2,088.45
6. Step 6: Final answer
   x = 1,488.25