Finding the Fourth Proportional to 2,086.83, 3,129.30 and 992.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.83 : 3,129.30 = 992.52 : x
2. Step 2: Convert to fraction form
   2,086.83/3,129.30 = 992.52/x
3. Step 3: Cross multiply
   2,086.83x = 3,129.30 × 992.52
4. Step 4: Simplify right side
   2,086.83x = 3,105,892.84
5. Step 5: Solve for x
   x = 3,105,892.84/2,086.83
6. Step 6: Final answer
   x = 1,488.33