Finding the Fourth Proportional to 1,992.37, 2,987.18 and 881.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.37 : 2,987.18 = 881.25 : x
2. Step 2: Convert to fraction form
   1,992.37/2,987.18 = 881.25/x
3. Step 3: Cross multiply
   1,992.37x = 2,987.18 × 881.25
4. Step 4: Simplify right side
   1,992.37x = 2,632,452.38
5. Step 5: Solve for x
   x = 2,632,452.38/1,992.37
6. Step 6: Final answer
   x = 1,321.27